HRSA 2023 Uniform Data System (UDS) Patient Level Submission (PLS) (UDS+) FHIR IG
1.1.0 - STU1 Release 1.1 - Standard for Trial-Use International flag

HRSA 2023 Uniform Data System (UDS) Patient Level Submission (PLS) (UDS+) FHIR IG, published by HRSA BPHC. This guide is not an authorized publication; it is the continuous build for version 1.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/drajer-health/uds-plus/ and changes regularly. See the Directory of published versions

Resource Profile: UDSPlusEncounter - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 2

Definitions for the uds-plus-encounter resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Encounter
Definition

The UDS+ profile is based on the Encounter resource and establishes the core elements, extensions, vocabularies and value sets for representing encounters,visit information for UDS+ program.

ShortDe-Identified UDS Plus Encounter
2. Encounter.id
Definition

De-dentified Encounter resource identifier.

ShortThe de-identified Encounter identifier created by the health center to send data to UDS+ Data Receiver
Must Supporttrue
4. Encounter.text
ShortCannot include any text in the resource as part of the de-identified data.
Control0..0
Must Supportfalse
6. Encounter.contained
ShortCannot include any contained resources in the resource as part of the de-identified data.
Control0..0
Must Supportfalse
8. Encounter.extension:uds-plus-age-extension
Slice Nameuds-plus-age-extension
ShortAge of the Patient computed using birthDate and the visit dates of the encounter
Control1..1
TypeExtension(UDS Plus Age Extension) (Extension Type: Quantity)
Must Supporttrue
10. Encounter.status
Control1..1
Must Supporttrue
12. Encounter.class
Control1..1
Must Supporttrue
14. Encounter.type
Control1..*
BindingUnless not suitable, these codes SHALL be taken from US Core Encounter Type
(extensible to http://hl7.org/fhir/us/core/ValueSet/us-core-encounter-type)

The set of codes indicating the type of encounter

Must Supporttrue
16. Encounter.subject
Control1..1
TypeReference(De-Identified UDS Plus Patient)
Must Supporttrue
18. Encounter.subject.display
Control0..0
Must Supportfalse
20. Encounter.participant
Control0..*
Must Supporttrue
22. Encounter.participant.type
Control0..*
Must Supporttrue
24. Encounter.participant.period
Control0..1
Must Supporttrue
Invariantsuds-plus-enc-1: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
uds-plus-enc-2: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
26. Encounter.participant.individual
Control0..1
TypeReference(US Core Practitioner Profile)
Must Supporttrue
28. Encounter.period
Control0..1
Must Supporttrue
Invariantsuds-plus-enc-3: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
uds-plus-enc-4: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
30. Encounter.reasonCode
Control0..*
Must Supporttrue
32. Encounter.reasonReference
Control0..*
TypeReference(De-Identified UDS Plus Diagnosis)
Must Supporttrue
34. Encounter.diagnosis
Control0..*
Must Supporttrue
36. Encounter.diagnosis.condition
Control1..1
TypeReference(De-Identified UDS Plus Diagnosis)
Must Supporttrue
38. Encounter.diagnosis.use
Control0..1
Must Supporttrue
40. Encounter.diagnosis.rank
Control0..1
Must Supporttrue
42. Encounter.hospitalization
Control0..1
Must Supporttrue
44. Encounter.hospitalization.dischargeDisposition
Control0..1
BindingThe codes SHOULD be taken from US Core Discharge Disposition
(preferred to http://hl7.org/fhir/us/core/ValueSet/us-core-discharge-disposition)

The set of codes indicating the discharge disposition

Must Supporttrue
46. Encounter.location
Control0..*
Must Supporttrue
48. Encounter.location.location
Control1..1
TypeReference(UDS Plus Location)
Must Supporttrue
50. Encounter.serviceProvider
Control0..1
TypeReference(US Core Organization Profile)
Must Supporttrue

Guidance on how to interpret the contents of this table can be found here

0. Encounter
Definition

The UDS+ profile is based on the Encounter resource and establishes the core elements, extensions, vocabularies and value sets for representing encounters,visit information for UDS+ program.


An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient.

ShortDe-Identified UDS Plus EncounterAn interaction during which services are provided to the patient
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesVisit
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
2. Encounter.id
Definition

De-dentified Encounter resource identifier.


The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

ShortThe de-identified Encounter identifier created by the health center to send data to UDS+ Data ReceiverLogical id of this artifact
Comments

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

Control0..1
Typeidstring
Is Modifierfalse
Must Supporttrue
Summarytrue
4. Encounter.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
6. Encounter.text
Definition

A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

ShortCannot include any text in the resource as part of the de-identified data.Text summary of the resource, for human interpretation
Comments

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

Control0..01
TypeNarrative
Is Modifierfalse
Must Supportfalse
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
8. Encounter.contained
Definition

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

ShortCannot include any contained resources in the resource as part of the de-identified data.Contained, inline Resources
Comments

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

Control0..0*
TypeResource
Is Modifierfalse
Must Supportfalse
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
10. Encounter.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortExtensionAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control10..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Encounter.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 12. Encounter.extension:uds-plus-age-extension
    Slice Nameuds-plus-age-extension
    Definition

    Indicates the age of the Patient computed based on date of birth at a specific time

    ShortAge of the Patient computed using birthDate and the visit dates of the encounter
    Control1..1
    This element is affected by the following invariants: ele-1
    TypeExtension(UDS Plus Age Extension) (Extension Type: Quantity)
    Is Modifierfalse
    Must Supporttrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    14. Encounter.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
    Summaryfalse
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    16. Encounter.status
    Definition

    planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

    Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
    Comments

    Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes).

    Control1..1
    BindingThe codes SHALL be taken from EncounterStatushttp://hl7.org/fhir/ValueSet/encounter-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

    Current state of the encounter.

    Typecode
    Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    18. Encounter.class
    Definition

    Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations.

    ShortClassification of patient encounter
    Control1..1
    BindingUnless not suitable, these codes SHALL be taken from ActEncounterCodehttp://terminology.hl7.org/ValueSet/v3-ActEncounterCode
    (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

    Classification of the encounter.

    TypeCoding
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    20. Encounter.type
    Definition

    Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation).

    ShortSpecific type of encounter
    Comments

    Since there are many ways to further classify encounters, this element is 0..*.

    Control10..*
    BindingUnless not suitable, these codes SHALL be taken from For example codes, see US Core Encounter Typehttp://hl7.org/fhir/ValueSet/encounter-type
    (extensible to http://hl7.org/fhir/us/core/ValueSet/us-core-encounter-type)

    The set of codes indicating the type of encounter


    The type of encounter.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    22. Encounter.subject
    Definition

    The patient or group present at the encounter.

    ShortThe patient or group present at the encounter
    Comments

    While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked).

    Control10..1
    TypeReference(De-Identified UDS Plus Patient, Patient, Group)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Alternate Namespatient
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    24. Encounter.subject.display
    Definition

    Plain text narrative that identifies the resource in addition to the resource reference.

    ShortText alternative for the resource
    Comments

    This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

    Control0..01
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supportfalse
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. Encounter.participant
    Definition

    The list of people responsible for providing the service.

    ShortList of participants involved in the encounter
    Control0..*
    TypeBackboneElement
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    28. Encounter.participant.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored even if unrecognized
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
    Summarytrue
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content, modifiers
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    30. Encounter.participant.type
    Definition

    Role of participant in encounter.

    ShortRole of participant in encounter
    Comments

    The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc.

    Control0..*
    BindingUnless not suitable, these codes SHALL be taken from ParticipantTypehttp://hl7.org/fhir/ValueSet/encounter-participant-type
    (extensible to http://hl7.org/fhir/ValueSet/encounter-participant-type)

    Role of participant in encounter.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    32. Encounter.participant.period
    Definition

    The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period.

    ShortPeriod of time during the encounter that the participant participated
    Control0..1
    TypePeriod
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    uds-plus-enc-1: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
    uds-plus-enc-2: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
    34. Encounter.participant.individual
    Definition

    Persons involved in the encounter other than the patient.

    ShortPersons involved in the encounter other than the patient
    Control0..1
    TypeReference(US Core Practitioner Profile, Practitioner, PractitionerRole, RelatedPerson)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    36. Encounter.period
    Definition

    The start and end time of the encounter.

    ShortThe start and end time of the encounter
    Comments

    If not (yet) known, the end of the Period may be omitted.

    Control0..1
    TypePeriod
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    uds-plus-enc-3: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
    uds-plus-enc-4: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
    38. Encounter.reasonCode
    Definition

    Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

    ShortCoded reason the encounter takes place
    Comments

    For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

    Control0..*
    BindingThe codes SHOULD be taken from EncounterReasonCodeshttp://hl7.org/fhir/ValueSet/encounter-reason
    (preferred to http://hl7.org/fhir/ValueSet/encounter-reason)

    Reason why the encounter takes place.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Alternate NamesIndication, Admission diagnosis
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    40. Encounter.reasonReference
    Definition

    Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

    ShortReason the encounter takes place (reference)
    Comments

    For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

    Control0..*
    TypeReference(De-Identified UDS Plus Diagnosis, Condition, Procedure, Observation, ImmunizationRecommendation)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Alternate NamesIndication, Admission diagnosis
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    42. Encounter.diagnosis
    Definition

    The list of diagnosis relevant to this encounter.

    ShortThe list of diagnosis relevant to this encounter
    Control0..*
    TypeBackboneElement
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    44. Encounter.diagnosis.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored even if unrecognized
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
    Summarytrue
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content, modifiers
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    46. Encounter.diagnosis.condition
    Definition

    Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure.

    ShortThe diagnosis or procedure relevant to the encounter
    Comments

    For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

    Control1..1
    TypeReference(De-Identified UDS Plus Diagnosis, Condition, Procedure)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Alternate NamesAdmission diagnosis, discharge diagnosis, indication
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    48. Encounter.diagnosis.use
    Definition

    Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …).

    ShortRole that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
    Control0..1
    BindingThe codes SHOULD be taken from DiagnosisRolehttp://hl7.org/fhir/ValueSet/diagnosis-role
    (preferred to http://hl7.org/fhir/ValueSet/diagnosis-role)

    The type of diagnosis this condition represents.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    50. Encounter.diagnosis.rank
    Definition

    Ranking of the diagnosis (for each role type).

    ShortRanking of the diagnosis (for each role type)
    Control0..1
    TypepositiveInt
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    52. Encounter.hospitalization
    Definition

    Details about the admission to a healthcare service.

    ShortDetails about the admission to a healthcare service
    Comments

    An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included.

    The duration recorded in the period of this encounter covers the entire scope of this hospitalization record.

    Control0..1
    TypeBackboneElement
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    54. Encounter.hospitalization.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored even if unrecognized
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
    Summarytrue
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content, modifiers
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    56. Encounter.hospitalization.dischargeDisposition
    Definition

    Category or kind of location after discharge.

    ShortCategory or kind of location after discharge
    Control0..1
    BindingThe codes SHOULD be taken from For example codes, see US Core Discharge Dispositionhttp://hl7.org/fhir/ValueSet/encounter-discharge-disposition
    (preferred to http://hl7.org/fhir/us/core/ValueSet/us-core-discharge-disposition)

    The set of codes indicating the discharge disposition


    Discharge Disposition.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    58. Encounter.location
    Definition

    List of locations where the patient has been during this encounter.

    ShortList of locations where the patient has been
    Comments

    Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual".

    Control0..*
    TypeBackboneElement
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    60. Encounter.location.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored even if unrecognized
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
    Summarytrue
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content, modifiers
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    62. Encounter.location.location
    Definition

    The location where the encounter takes place.

    ShortLocation the encounter takes place
    Control1..1
    TypeReference(UDS Plus Location, Location)
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    64. Encounter.serviceProvider
    Definition

    The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy.

    ShortThe organization (facility) responsible for this encounter
    Control0..1
    TypeReference(US Core Organization Profile, Organization)
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

    Guidance on how to interpret the contents of this table can be found here

    0. Encounter
    Definition

    The UDS+ profile is based on the Encounter resource and establishes the core elements, extensions, vocabularies and value sets for representing encounters,visit information for UDS+ program.

    ShortDe-Identified UDS Plus Encounter
    Control0..*
    Is Modifierfalse
    Summaryfalse
    Alternate NamesVisit
    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
    dom-6: A resource should have narrative for robust management (text.`div`.exists())
    2. Encounter.id
    Definition

    De-dentified Encounter resource identifier.

    ShortThe de-identified Encounter identifier created by the health center to send data to UDS+ Data Receiver
    Comments

    The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

    Control0..1
    Typeid
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    4. Encounter.meta
    Definition

    The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

    ShortMetadata about the resource
    Control0..1
    TypeMeta
    Is Modifierfalse
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    6. Encounter.implicitRules
    Definition

    A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

    ShortA set of rules under which this content was created
    Comments

    Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

    Control0..1
    Typeuri
    Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    8. Encounter.language
    Definition

    The base language in which the resource is written.

    ShortLanguage of the resource content
    Comments

    Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

    Control0..1
    BindingThe codes SHOULD be taken from CommonLanguages
    (preferred to http://hl7.org/fhir/ValueSet/languages)

    A human language.

    Additional BindingsPurpose
    AllLanguagesMax Binding
    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Encounter.text
    Definition

    A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

    ShortCannot include any text in the resource as part of the de-identified data.
    Comments

    Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

    Control0..0
    TypeNarrative
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Alternate Namesnarrative, html, xhtml, display
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Encounter.contained
    Definition

    These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

    ShortCannot include any contained resources in the resource as part of the de-identified data.
    Comments

    This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

    Control0..0
    TypeResource
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Alternate Namesinline resources, anonymous resources, contained resources
    14. Encounter.extension
    Definition

    An Extension

    ShortExtension
    Control1..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on Encounter.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 16. Encounter.extension:uds-plus-age-extension
      Slice Nameuds-plus-age-extension
      Definition

      Indicates the age of the Patient computed based on date of birth at a specific time

      ShortAge of the Patient computed using birthDate and the visit dates of the encounter
      Control1..1
      This element is affected by the following invariants: ele-1
      TypeExtension(UDS Plus Age Extension) (Extension Type: Quantity)
      Is Modifierfalse
      Must Supporttrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      18. Encounter.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
      Summaryfalse
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      20. Encounter.identifier
      Definition

      Identifier(s) by which this encounter is known.

      ShortIdentifier(s) by which this encounter is known
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      TypeIdentifier
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. Encounter.status
      Definition

      planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

      Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
      Comments

      Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes).

      Control1..1
      BindingThe codes SHALL be taken from EncounterStatus
      (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

      Current state of the encounter.

      Typecode
      Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. Encounter.statusHistory
      Definition

      The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them.

      ShortList of past encounter statuses
      Comments

      The current status is always found in the current version of the resource, not the status history.

      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. Encounter.statusHistory.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      28. Encounter.statusHistory.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      30. Encounter.statusHistory.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored even if unrecognized
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
      Summarytrue
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content, modifiers
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      32. Encounter.statusHistory.status
      Definition

      planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

      Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
      Control1..1
      BindingThe codes SHALL be taken from EncounterStatus
      (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

      Current state of the encounter.

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      34. Encounter.statusHistory.period
      Definition

      The time that the episode was in the specified status.

      ShortThe time that the episode was in the specified status
      Control1..1
      TypePeriod
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      36. Encounter.class
      Definition

      Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations.

      ShortClassification of patient encounter
      Control1..1
      BindingUnless not suitable, these codes SHALL be taken from ActEncounterCode
      (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

      Classification of the encounter.

      TypeCoding
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      38. Encounter.classHistory
      Definition

      The class history permits the tracking of the encounters transitions without needing to go through the resource history. This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient.

      ShortList of past encounter classes
      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      40. Encounter.classHistory.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      42. Encounter.classHistory.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      44. Encounter.classHistory.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored even if unrecognized
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
      Summarytrue
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content, modifiers
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      46. Encounter.classHistory.class
      Definition

      inpatient | outpatient | ambulatory | emergency +.

      Shortinpatient | outpatient | ambulatory | emergency +
      Control1..1
      BindingUnless not suitable, these codes SHALL be taken from ActEncounterCode
      (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

      Classification of the encounter.

      TypeCoding
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      48. Encounter.classHistory.period
      Definition

      The time that the episode was in the specified class.

      ShortThe time that the episode was in the specified class
      Control1..1
      TypePeriod
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      50. Encounter.type
      Definition

      Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation).

      ShortSpecific type of encounter
      Comments

      Since there are many ways to further classify encounters, this element is 0..*.

      Control1..*
      BindingUnless not suitable, these codes SHALL be taken from US Core Encounter Type
      (extensible to http://hl7.org/fhir/us/core/ValueSet/us-core-encounter-type)

      The set of codes indicating the type of encounter

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      52. Encounter.serviceType
      Definition

      Broad categorization of the service that is to be provided (e.g. cardiology).

      ShortSpecific type of service
      Control0..1
      BindingFor example codes, see ServiceType
      (example to http://hl7.org/fhir/ValueSet/service-type)

      Broad categorization of the service that is to be provided.

      TypeCodeableConcept
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      54. Encounter.priority
      Definition

      Indicates the urgency of the encounter.

      ShortIndicates the urgency of the encounter
      Control0..1
      BindingFor example codes, see ActPriority
      (example to http://terminology.hl7.org/ValueSet/v3-ActPriority)

      Indicates the urgency of the encounter.

      TypeCodeableConcept
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      56. Encounter.subject
      Definition

      The patient or group present at the encounter.

      ShortThe patient or group present at the encounter
      Comments

      While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked).

      Control1..1
      TypeReference(De-Identified UDS Plus Patient)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Alternate Namespatient
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      58. Encounter.subject.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      60. Encounter.subject.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on Encounter.subject.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 62. Encounter.subject.reference
        Definition

        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

        ShortLiteral reference, Relative, internal or absolute URL
        Comments

        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

        Control0..1
        This element is affected by the following invariants: ref-1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        64. Encounter.subject.type
        Definition

        The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

        The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

        ShortType the reference refers to (e.g. "Patient")
        Comments

        This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from ResourceType
        (extensible to http://hl7.org/fhir/ValueSet/resource-types)

        Aa resource (or, for logical models, the URI of the logical model).

        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        66. Encounter.subject.identifier
        Definition

        An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

        ShortLogical reference, when literal reference is not known
        Comments

        When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

        When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

        Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

        Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        68. Encounter.subject.display
        Definition

        Plain text narrative that identifies the resource in addition to the resource reference.

        ShortText alternative for the resource
        Comments

        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

        Control0..0
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        70. Encounter.episodeOfCare
        Definition

        Where a specific encounter should be classified as a part of a specific episode(s) of care this field should be used. This association can facilitate grouping of related encounters together for a specific purpose, such as government reporting, issue tracking, association via a common problem. The association is recorded on the encounter as these are typically created after the episode of care and grouped on entry rather than editing the episode of care to append another encounter to it (the episode of care could span years).

        ShortEpisode(s) of care that this encounter should be recorded against
        Control0..*
        TypeReference(EpisodeOfCare)
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        72. Encounter.basedOn
        Definition

        The request this encounter satisfies (e.g. incoming referral or procedure request).

        ShortThe ServiceRequest that initiated this encounter
        Control0..*
        TypeReference(ServiceRequest)
        Is Modifierfalse
        Summaryfalse
        Alternate NamesincomingReferral
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        74. Encounter.participant
        Definition

        The list of people responsible for providing the service.

        ShortList of participants involved in the encounter
        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        76. Encounter.participant.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        78. Encounter.participant.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        80. Encounter.participant.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        82. Encounter.participant.type
        Definition

        Role of participant in encounter.

        ShortRole of participant in encounter
        Comments

        The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc.

        Control0..*
        BindingUnless not suitable, these codes SHALL be taken from ParticipantType
        (extensible to http://hl7.org/fhir/ValueSet/encounter-participant-type)

        Role of participant in encounter.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        84. Encounter.participant.period
        Definition

        The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period.

        ShortPeriod of time during the encounter that the participant participated
        Control0..1
        TypePeriod
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        uds-plus-enc-1: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
        uds-plus-enc-2: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
        86. Encounter.participant.individual
        Definition

        Persons involved in the encounter other than the patient.

        ShortPersons involved in the encounter other than the patient
        Control0..1
        TypeReference(US Core Practitioner Profile)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        88. Encounter.appointment
        Definition

        The appointment that scheduled this encounter.

        ShortThe appointment that scheduled this encounter
        Control0..*
        TypeReference(Appointment)
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        90. Encounter.period
        Definition

        The start and end time of the encounter.

        ShortThe start and end time of the encounter
        Comments

        If not (yet) known, the end of the Period may be omitted.

        Control0..1
        TypePeriod
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        uds-plus-enc-3: All Period.start data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.start.exists() implies $this.start.toString().length() = 4)
        uds-plus-enc-4: All Period.emd data elements should be truncated to a year only for de-identified resources. ($this is Period and $this.end.exists() implies $this.end.toString().length() = 4)
        92. Encounter.length
        Definition

        Quantity of time the encounter lasted. This excludes the time during leaves of absence.

        ShortQuantity of time the encounter lasted (less time absent)
        Comments

        May differ from the time the Encounter.period lasted because of leave of absence.

        Control0..1
        TypeDuration
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        94. Encounter.reasonCode
        Definition

        Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

        ShortCoded reason the encounter takes place
        Comments

        For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

        Control0..*
        BindingThe codes SHOULD be taken from EncounterReasonCodes
        (preferred to http://hl7.org/fhir/ValueSet/encounter-reason)

        Reason why the encounter takes place.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Alternate NamesIndication, Admission diagnosis
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        96. Encounter.reasonReference
        Definition

        Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

        ShortReason the encounter takes place (reference)
        Comments

        For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

        Control0..*
        TypeReference(De-Identified UDS Plus Diagnosis)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Alternate NamesIndication, Admission diagnosis
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        98. Encounter.diagnosis
        Definition

        The list of diagnosis relevant to this encounter.

        ShortThe list of diagnosis relevant to this encounter
        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        100. Encounter.diagnosis.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        102. Encounter.diagnosis.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        104. Encounter.diagnosis.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        106. Encounter.diagnosis.condition
        Definition

        Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure.

        ShortThe diagnosis or procedure relevant to the encounter
        Comments

        For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

        Control1..1
        TypeReference(De-Identified UDS Plus Diagnosis)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Alternate NamesAdmission diagnosis, discharge diagnosis, indication
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        108. Encounter.diagnosis.use
        Definition

        Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …).

        ShortRole that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
        Control0..1
        BindingThe codes SHOULD be taken from DiagnosisRole
        (preferred to http://hl7.org/fhir/ValueSet/diagnosis-role)

        The type of diagnosis this condition represents.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        110. Encounter.diagnosis.rank
        Definition

        Ranking of the diagnosis (for each role type).

        ShortRanking of the diagnosis (for each role type)
        Control0..1
        TypepositiveInt
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        112. Encounter.account
        Definition

        The set of accounts that may be used for billing for this Encounter.

        ShortThe set of accounts that may be used for billing for this Encounter
        Comments

        The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules.

        Control0..*
        TypeReference(Account)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        114. Encounter.hospitalization
        Definition

        Details about the admission to a healthcare service.

        ShortDetails about the admission to a healthcare service
        Comments

        An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included.

        The duration recorded in the period of this encounter covers the entire scope of this hospitalization record.

        Control0..1
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        116. Encounter.hospitalization.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        118. Encounter.hospitalization.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        120. Encounter.hospitalization.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        122. Encounter.hospitalization.preAdmissionIdentifier
        Definition

        Pre-admission identifier.

        ShortPre-admission identifier
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        124. Encounter.hospitalization.origin
        Definition

        The location/organization from which the patient came before admission.

        ShortThe location/organization from which the patient came before admission
        Control0..1
        TypeReference(Location, Organization)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        126. Encounter.hospitalization.admitSource
        Definition

        From where patient was admitted (physician referral, transfer).

        ShortFrom where patient was admitted (physician referral, transfer)
        Control0..1
        BindingThe codes SHOULD be taken from AdmitSource
        (preferred to http://hl7.org/fhir/ValueSet/encounter-admit-source)

        From where the patient was admitted.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        128. Encounter.hospitalization.reAdmission
        Definition

        Whether this hospitalization is a readmission and why if known.

        ShortThe type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission
        Control0..1
        BindingFor example codes, see hl7VS-re-admissionIndicator
        (example to http://terminology.hl7.org/ValueSet/v2-0092)

        The reason for re-admission of this hospitalization encounter.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        130. Encounter.hospitalization.dietPreference
        Definition

        Diet preferences reported by the patient.

        ShortDiet preferences reported by the patient
        Comments

        For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive).

        Control0..*
        BindingFor example codes, see Diet
        (example to http://hl7.org/fhir/ValueSet/encounter-diet)

        Medical, cultural or ethical food preferences to help with catering requirements.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Requirements

        Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        132. Encounter.hospitalization.specialCourtesy
        Definition

        Special courtesies (VIP, board member).

        ShortSpecial courtesies (VIP, board member)
        Control0..*
        BindingThe codes SHOULD be taken from SpecialCourtesy
        (preferred to http://hl7.org/fhir/ValueSet/encounter-special-courtesy)

        Special courtesies.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        134. Encounter.hospitalization.specialArrangement
        Definition

        Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things.

        ShortWheelchair, translator, stretcher, etc.
        Control0..*
        BindingThe codes SHOULD be taken from SpecialArrangements
        (preferred to http://hl7.org/fhir/ValueSet/encounter-special-arrangements)

        Special arrangements.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        136. Encounter.hospitalization.destination
        Definition

        Location/organization to which the patient is discharged.

        ShortLocation/organization to which the patient is discharged
        Control0..1
        TypeReference(Location, Organization)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        138. Encounter.hospitalization.dischargeDisposition
        Definition

        Category or kind of location after discharge.

        ShortCategory or kind of location after discharge
        Control0..1
        BindingThe codes SHOULD be taken from US Core Discharge Disposition
        (preferred to http://hl7.org/fhir/us/core/ValueSet/us-core-discharge-disposition)

        The set of codes indicating the discharge disposition

        TypeCodeableConcept
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        140. Encounter.location
        Definition

        List of locations where the patient has been during this encounter.

        ShortList of locations where the patient has been
        Comments

        Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual".

        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        142. Encounter.location.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        144. Encounter.location.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        146. Encounter.location.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        148. Encounter.location.location
        Definition

        The location where the encounter takes place.

        ShortLocation the encounter takes place
        Control1..1
        TypeReference(UDS Plus Location)
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        150. Encounter.location.status
        Definition

        The status of the participants' presence at the specified location during the period specified. If the participant is no longer at the location, then the period will have an end date/time.

        Shortplanned | active | reserved | completed
        Comments

        When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed.

        Control0..1
        BindingThe codes SHALL be taken from EncounterLocationStatus
        (required to http://hl7.org/fhir/ValueSet/encounter-location-status|4.0.1)

        The status of the location.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        152. Encounter.location.physicalType
        Definition

        This will be used to specify the required levels (bed/ward/room/etc.) desired to be recorded to simplify either messaging or query.

        ShortThe physical type of the location (usually the level in the location hierachy - bed room ward etc.)
        Comments

        This information is de-normalized from the Location resource to support the easier understanding of the encounter resource and processing in messaging or query.

        There may be many levels in the hierachy, and this may only pic specific levels that are required for a specific usage scenario.

        Control0..1
        BindingFor example codes, see LocationType
        (example to http://hl7.org/fhir/ValueSet/location-physical-type)

        Physical form of the location.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        154. Encounter.location.period
        Definition

        Time period during which the patient was present at the location.

        ShortTime period during which the patient was present at the location
        Control0..1
        TypePeriod
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        156. Encounter.serviceProvider
        Definition

        The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy.

        ShortThe organization (facility) responsible for this encounter
        Control0..1
        TypeReference(US Core Organization Profile)
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        158. Encounter.partOf
        Definition

        Another Encounter of which this encounter is a part of (administratively or in time).

        ShortAnother Encounter this encounter is part of
        Comments

        This is also used for associating a child's encounter back to the mother's encounter.

        Refer to the Notes section in the Patient resource for further details.

        Control0..1
        TypeReference(Encounter)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))