SMART Health Cards: Vaccination & Testing Implementation Guide
1.0.0 - STU1 Release International flag

SMART Health Cards: Vaccination & Testing Implementation Guide, published by HL7 International / Public Health. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-shc-vaccination-ig/ and changes regularly. See the Directory of published versions

Resource Profile: SHCPatientGeneralAD - Detailed Descriptions

Draft as of 2024-12-04

Definitions for the shc-patient-general-ad resource profile.

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

0. Patient
Definition

Demographics and other administrative information about an individual receiving a vaccination or infectious disease-related laboratory test.

ShortInformation about an individual receiving an individual receiving a vaccination or infectious disease-related laboratory test
2. Patient.id
Definition

For data minimization reasons, this element SHOULD NOT be populated when generating a resource conforming to this profile for inclusion in one of the Bundles profiled in this IG.

ShortShould not be populated
Comments

Not including id may result in FHIR validation errors of resources. These errors can be ignored for the purposes of assessing conformance to this IG.

4. Patient.name
Definition

Official name (i.e., legal name) of the patient, corresponding to official in this value set. Issuers SHALL provide a single name element UNLESS they believe providing multiple name elements is critical for verification of the credential. If providing only a single name element, Issuers SHALL NOT populate name.use, and Verifiers SHALL assume that the provided name is official.

ShortOfficial name (i.e., legal name) of patient
Comments

Cardinality for this element is set to 1..* rather than 1..1 as in rare cases there may be a valid rational for including multiple name elements (e.g., for a recent name change that is not yet reflected on a photo ID but will be soon). The Data Minimization version of this profile reflects the rarity of this by setting name to 1..1.

Name parts are typically split between name.family and name.given. For example Marie Salomea Skłodowska Curie would be represented as name.family=“Curie”, and name.given=[“Marie”, “Salomea”, “Skłodowska”].

If it is not clear how to split the parts of a person's name into name.family and name.given, or if a person has a single word for their name, implementers MAY use name.text instead (e.g., name.text=“Marie Salomea Skłodowska Curie”).

Issuers SHOULD make every effort to have the contents of name match what appears on the patient's government-issued photo ID.

Other implementers SHALL support display/processing of name.family/name.given AND name.text.

Control1..?
Must Supporttrue
Invariantsvc-name-invariant: Require one of the key name elements to be filled. Allows for `text` for names that cannot be cleanly categorized into `family` and `given` (https://www.nature.com/articles/d41586-020-02761-z). ((family.exists() and given.exists()) xor text.exists())
6. Patient.name.text
ShortUse instead of `family` and `given` if the patient's name cannot be easily split into these elements
8. Patient.name.family
Must Supporttrue
10. Patient.name.given
ShortParts of patient's name other than their family name that appear on photo ID; e.g., first and middle names
Comments

This element is used to represent all parts of a patient's name that are not their family name. For example, Marie Salomea Skłodowska Curie would have three values for name.given: ["Marie", "Salomea", "Skłodowska"].

Implementers SHOULD include all given name parts that appear on the patient's government-issued photo ID.

Must Supporttrue
12. Patient.name.prefix
Comments

SHOULD be included if it appears on a government-issued ID.

Must Supporttrue
14. Patient.name.suffix
Comments

SHOULD be included if it appears on a government-issued ID.

Must Supporttrue
16. Patient.telecom
18. Patient.telecom.value
Comments

For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

Invariantsvc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
20. Patient.gender
Definition

Administrative gender.

Issuers SHALL NOT include gender unless required by law in the jurisdiction where the SMART Health Card is issued.

Verifiers SHALL NOT use gender in their workflows unless required by law in both the jurisdiction where the SMART Health Card was issued and the jurisdiction governing the Verifier.

ShortAdministrative gender
Comments

SMART Health Cards cannot be used as a form of identification. From the SMART Health Card specification:

"SMART Health Cards are designed for use alongside existing forms of identification (e.g., a driver's license in person, or an online ID verification service). A SMART Health Card is a non-forgeable digital artifact analogous to a paper record on official letterhead. Concretely, the problem SMART Health Cards solve is one of provenance: a digitally signed SMART Health Card is a credential that guarantees that a specific issuer generated the record. The duty of verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject) falls to the person or system receiving and validating a Health Card."

To facilitate verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject), the patient's name and date of birth are included the SMART Health Card. Gender is typically not included because name and date of birth are sufficient for verification workflows, and there may be legitimate reasons why gender in a SMART Health Card does not match that in an existing form of identification (e.g., a change in administrative gender, or differences in how gender is represented). Note that it may not be possible to get a re-issued SMART Health Card if a patient's administrative gender changes.

Additionally, patients may not wish to share their administrative gender with Verifiers. Since this information is typically not necessary for the Verifiers' use case, it should be omitted as is consistent with the privacy by design approach used throughout this IG.

Invariantsuse-only-if-required-by-law: SHALL be omitted UNLESS required by law in jurisdiction where SHC is issued ($this.length() = 0)
22. Patient.birthDate
Comments

If exact date of birth is partially or completely unknown, Issuers SHALL populate this element with the date of birth information listed on the patient's government-issued identification. This MAY include a partial date of birth like 1999 or 1999-01, or "filler" for unknown portions. (E.g., if a patient was born in 1950 but does not know the month or day, their government-issued identification may fill the month and day with -01-01. In this case, it is acceptable to populate this element with 1950-01-01 even if it is known the patient was not actually born on January 1.) If date of birth is completely unknown and no government-issued identification is available, Issuers MAY omit this element.

Must Supporttrue
LOINC Code
24. Patient.address
26. Patient.address.text
Definition

Full physical address SHALL not be included because of patient privacy concerns.

ShortSHALL not be included
Comments

There are scenarios where a Holder of a credential may wish to present their credential without revealing their full physical address.

Control0..0
28. Patient.address.line
Definition

Full physical address SHALL not be included because of patient privacy concerns.

ShortSHALL not be included
Comments

There are scenarios where a Holder of a credential may wish to present their credential without revealing their full physical address.

Control0..0
30. Patient.address.city
Comments

For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

Invariantsvc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
32. Patient.address.district
Comments

For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

Invariantsvc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
34. Patient.address.state
Comments

For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

Invariantsvc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
36. Patient.address.postalCode
Comments

For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

Invariantsvc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
38. Patient.photo
Comments

Attachments are not allowed due to data size constraints.

Control0..0
40. Patient.contact
Control0..0

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

0. Patient
Definition

Demographics and other administrative information about an individual receiving a vaccination or infectious disease-related laboratory test.


Demographics and other administrative information about an individual or animal receiving care or other health-related services.

ShortInformation about an individual receiving an individual receiving a vaccination or infectious disease-related laboratory testInformation about an individual or animal receiving health care services
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesSubjectOfCare Client Resident
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. Patient.id
Definition

For data minimization reasons, this element SHOULD NOT be populated when generating a resource conforming to this profile for inclusion in one of the Bundles profiled in this IG.


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

ShortShould not be populatedLogical id of this artifact
Comments

Not including id may result in FHIR validation errors of resources. These errors can be ignored for the purposes of assessing conformance to this IG.


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
Summarytrue
4. Patient.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. Patient.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())
8. Patient.active
Definition

Whether this patient record is in active use. Many systems use this property to mark as non-current patients, such as those that have not been seen for a period of time based on an organization's business rules.

It is often used to filter patient lists to exclude inactive patients

Deceased patients may also be marked as inactive for the same reasons, but may be active for some time after death.

ShortWhether this patient's record is in active use
Comments

If a record is inactive, and linked to an active record, then future patient/record updates should occur on the other patient.

Control0..1
Typeboolean
Is Modifiertrue because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to be able to mark a patient record as not to be used because it was created in error.

Meaning if MissingThis resource is generally assumed to be active if no value is provided for the active element
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Patient.name
Definition

Official name (i.e., legal name) of the patient, corresponding to official in this value set. Issuers SHALL provide a single name element UNLESS they believe providing multiple name elements is critical for verification of the credential. If providing only a single name element, Issuers SHALL NOT populate name.use, and Verifiers SHALL assume that the provided name is official.


A name associated with the individual.

ShortOfficial name (i.e., legal name) of patientA name associated with the patient
Comments

Cardinality for this element is set to 1..* rather than 1..1 as in rare cases there may be a valid rational for including multiple name elements (e.g., for a recent name change that is not yet reflected on a photo ID but will be soon). The Data Minimization version of this profile reflects the rarity of this by setting name to 1..1.

Name parts are typically split between name.family and name.given. For example Marie Salomea Skłodowska Curie would be represented as name.family=“Curie”, and name.given=[“Marie”, “Salomea”, “Skłodowska”].

If it is not clear how to split the parts of a person's name into name.family and name.given, or if a person has a single word for their name, implementers MAY use name.text instead (e.g., name.text=“Marie Salomea Skłodowska Curie”).

Issuers SHOULD make every effort to have the contents of name match what appears on the patient's government-issued photo ID.

Other implementers SHALL support display/processing of name.family/name.given AND name.text.


A patient may have multiple names with different uses or applicable periods. For animals, the name is a "HumanName" in the sense that is assigned and used by humans and has the same patterns.

Control10..*
TypeHumanName
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Need to be able to track the patient by multiple names. Examples are your official name and a partner name.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
vc-name-invariant: Require one of the key name elements to be filled. Allows for `text` for names that cannot be cleanly categorized into `family` and `given` (https://www.nature.com/articles/d41586-020-02761-z). ((family.exists() and given.exists()) xor text.exists())
12. Patient.name.use
Definition

Identifies the purpose for this name.

Shortusual | official | temp | nickname | anonymous | old | maiden
Comments

Applications can assume that a name is current unless it explicitly says that it is temporary or old.

Control0..1
BindingThe codes SHALL be taken from NameUsehttp://hl7.org/fhir/ValueSet/name-use|4.0.1
(required to http://hl7.org/fhir/ValueSet/name-use|4.0.1)

The use of a human name.

Typecode
Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary or old name etc.for a current/permanent one
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Allows the appropriate name for a particular context of use to be selected from among a set of names.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. Patient.name.text
Definition

Specifies the entire name as it should be displayed e.g. on an application UI. This may be provided instead of or as well as the specific parts.

ShortUse instead of `family` and `given` if the patient's name cannot be easily split into these elementsText representation of the full name
Comments

Can provide both a text representation and parts. Applications updating a name SHALL ensure that when both text and parts are present, no content is included in the text that isn't found in a part.

Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

A renderable, unencoded form.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. Patient.name.family
Definition

The part of a name that links to the genealogy. In some cultures (e.g. Eritrea) the family name of a son is the first name of his father.

ShortFamily name (often called 'Surname')
Comments

Family Name may be decomposed into specific parts using extensions (de, nl, es related cultures).

Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Alternate Namessurname
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. Patient.name.given
Definition

Given name.

ShortParts of patient's name other than their family name that appear on photo ID; e.g., first and middle namesGiven names (not always 'first'). Includes middle names
Comments

This element is used to represent all parts of a patient's name that are not their family name. For example, Marie Salomea Skłodowska Curie would have three values for name.given: ["Marie", "Salomea", "Skłodowska"].

Implementers SHOULD include all given name parts that appear on the patient's government-issued photo ID.


If only initials are recorded, they may be used in place of the full name parts. Initials may be separated into multiple given names but often aren't due to paractical limitations. This element is not called "first name" since given names do not always come first.

Control0..*
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Alternate Namesfirst name, middle name
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Patient.name.prefix
Definition

Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the start of the name.

ShortParts that come before the name
Comments

SHOULD be included if it appears on a government-issued ID.

Control0..*
Typestring
Is Modifierfalse
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()))
22. Patient.name.suffix
Definition

Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the end of the name.

ShortParts that come after the name
Comments

SHOULD be included if it appears on a government-issued ID.

Control0..*
Typestring
Is Modifierfalse
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. Patient.gender
Definition

Administrative gender.

Issuers SHALL NOT include gender unless required by law in the jurisdiction where the SMART Health Card is issued.

Verifiers SHALL NOT use gender in their workflows unless required by law in both the jurisdiction where the SMART Health Card was issued and the jurisdiction governing the Verifier.


Administrative Gender - the gender that the patient is considered to have for administration and record keeping purposes.

ShortAdministrative gendermale | female | other | unknown
Comments

SMART Health Cards cannot be used as a form of identification. From the SMART Health Card specification:

"SMART Health Cards are designed for use alongside existing forms of identification (e.g., a driver's license in person, or an online ID verification service). A SMART Health Card is a non-forgeable digital artifact analogous to a paper record on official letterhead. Concretely, the problem SMART Health Cards solve is one of provenance: a digitally signed SMART Health Card is a credential that guarantees that a specific issuer generated the record. The duty of verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject) falls to the person or system receiving and validating a Health Card."

To facilitate verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject), the patient's name and date of birth are included the SMART Health Card. Gender is typically not included because name and date of birth are sufficient for verification workflows, and there may be legitimate reasons why gender in a SMART Health Card does not match that in an existing form of identification (e.g., a change in administrative gender, or differences in how gender is represented). Note that it may not be possible to get a re-issued SMART Health Card if a patient's administrative gender changes.

Additionally, patients may not wish to share their administrative gender with Verifiers. Since this information is typically not necessary for the Verifiers' use case, it should be omitted as is consistent with the privacy by design approach used throughout this IG.


The gender might not match the biological sex as determined by genetics or the individual's preferred identification. Note that for both humans and particularly animals, there are other legitimate possibilities than male and female, though the vast majority of systems and contexts only support male and female. Systems providing decision support or enforcing business rules should ideally do this on the basis of Observations dealing with the specific sex or gender aspect of interest (anatomical, chromosomal, social, etc.) However, because these observations are infrequently recorded, defaulting to the administrative gender is common practice. Where such defaulting occurs, rule enforcement should allow for the variation between administrative and biological, chromosomal and other gender aspects. For example, an alert about a hysterectomy on a male should be handled as a warning or overridable error, not a "hard" error. See the Patient Gender and Sex section for additional information about communicating patient gender and sex.

Control0..1
BindingThe codes SHALL be taken from AdministrativeGenderhttp://hl7.org/fhir/ValueSet/administrative-gender|4.0.1
(required to http://hl7.org/fhir/ValueSet/administrative-gender|4.0.1)

The gender of a person used for administrative purposes.

Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Needed for identification of the individual, in combination with (at least) name and birth date.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
use-only-if-required-by-law: SHALL be omitted UNLESS required by law in jurisdiction where SHC is issued ($this.length() = 0)
26. Patient.birthDate
Definition

The date of birth for the individual.

ShortThe date of birth for the individual
Comments

If exact date of birth is partially or completely unknown, Issuers SHALL populate this element with the date of birth information listed on the patient's government-issued identification. This MAY include a partial date of birth like 1999 or 1999-01, or "filler" for unknown portions. (E.g., if a patient was born in 1950 but does not know the month or day, their government-issued identification may fill the month and day with -01-01. In this case, it is acceptable to populate this element with 1950-01-01 even if it is known the patient was not actually born on January 1.) If date of birth is completely unknown and no government-issued identification is available, Issuers MAY omit this element.


At least an estimated year should be provided as a guess if the real DOB is unknown There is a standard extension "patient-birthTime" available that should be used where Time is required (such as in maternity/infant care systems).

Control0..1
Typedate
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Age of the individual drives many clinical processes.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
LOINC Code21112-8
28. Patient.deceased[x]
Definition

Indicates if the individual is deceased or not.

ShortIndicates if the individual is deceased or not
Comments

If there's no value in the instance, it means there is no statement on whether or not the individual is deceased. Most systems will interpret the absence of a value as a sign of the person being alive.

Control0..1
TypeChoice of: boolean, dateTime
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Is Modifiertrue because This element is labeled as a modifier because once a patient is marked as deceased, the actions that are appropriate to perform on the patient may be significantly different.
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The fact that a patient is deceased influences the clinical process. Also, in human communication and relation management it is necessary to know whether the person is alive.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. Patient.photo
Definition

Image of the patient.

ShortImage of the patient
Comments

Attachments are not allowed due to data size constraints.


Guidelines:

  • Use id photos, not clinical photos.
  • Limit dimensions to thumbnail.
  • Keep byte count low to ease resource updates.
Control0..0*
TypeAttachment
Is Modifierfalse
Summaryfalse
Requirements

Many EHR systems have the capability to capture an image of the patient. Fits with newer social media usage too.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. Patient.contact
Definition

A contact party (e.g. guardian, partner, friend) for the patient.

ShortA contact party (e.g. guardian, partner, friend) for the patient
Comments

Contact covers all kinds of contact parties: family members, business contacts, guardians, caregivers. Not applicable to register pedigree and family ties beyond use of having contact.

Control0..0*
TypeBackboneElement
Is Modifierfalse
Summaryfalse
Requirements

Need to track people you can contact about the patient.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
pat-1: SHALL at least contain a contact's details or a reference to an organization (name.exists() or telecom.exists() or address.exists() or organization.exists())
pat-1: SHALL at least contain a contact's details or a reference to an organization (name.exists() or telecom.exists() or address.exists() or organization.exists())
35. Patient.link
Definition

Link to another patient resource that concerns the same actual patient.

ShortLink to another patient resource that concerns the same actual person
Comments

There is no assumption that linked patient records have mutual links.

Control0..*
TypeBackboneElement
Is Modifiertrue because This element is labeled as a modifier because it might not be the main Patient resource, and the referenced patient should be used instead of this Patient record. This is when the link.type value is 'replaced-by'
Summarytrue
Requirements

There are multiple use cases:

  • Duplicate patient records due to the clerical errors associated with the difficulties of identifying humans consistently, and
  • Distribution of patient information across multiple servers.
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
37. Patient.link.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())
39. Patient.link.other
Definition

The other patient resource that the link refers to.

ShortThe other patient or related person resource that the link refers to
Comments

Referencing a RelatedPerson here removes the need to use a Person record to associate a Patient and RelatedPerson as the same individual.

Control1..1
TypeReference(Patient, RelatedPerson)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
41. Patient.link.type
Definition

The type of link between this patient resource and another patient resource.

Shortreplaced-by | replaces | refer | seealso
Control1..1
BindingThe codes SHALL be taken from LinkTypehttp://hl7.org/fhir/ValueSet/link-type|4.0.1
(required to http://hl7.org/fhir/ValueSet/link-type|4.0.1)

The type of link between this patient resource and another patient resource.

Typecode
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()))

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

0. Patient
Definition

Demographics and other administrative information about an individual receiving a vaccination or infectious disease-related laboratory test.

ShortInformation about an individual receiving an individual receiving a vaccination or infectious disease-related laboratory test
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesSubjectOfCare Client Resident
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. Patient.id
Definition

For data minimization reasons, this element SHOULD NOT be populated when generating a resource conforming to this profile for inclusion in one of the Bundles profiled in this IG.

ShortShould not be populated
Comments

Not including id may result in FHIR validation errors of resources. These errors can be ignored for the purposes of assessing conformance to this IG.

Control0..1
Typeid
Is Modifierfalse
Summarytrue
4. Patient.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. Patient.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. Patient.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. Patient.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.

ShortText 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..1
TypeNarrative
Is Modifierfalse
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Patient.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.

ShortContained, 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..*
TypeResource
Is Modifierfalse
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
14. Patient.extension
Definition

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.

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())
16. Patient.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())
18. Patient.identifier
Definition

An identifier for this patient.

ShortAn identifier for this patient
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
Is Modifierfalse
Summarytrue
Requirements

Patients are almost always assigned specific numerical identifiers.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Patient.active
Definition

Whether this patient record is in active use. Many systems use this property to mark as non-current patients, such as those that have not been seen for a period of time based on an organization's business rules.

It is often used to filter patient lists to exclude inactive patients

Deceased patients may also be marked as inactive for the same reasons, but may be active for some time after death.

ShortWhether this patient's record is in active use
Comments

If a record is inactive, and linked to an active record, then future patient/record updates should occur on the other patient.

Control0..1
Typeboolean
Is Modifiertrue because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to be able to mark a patient record as not to be used because it was created in error.

Meaning if MissingThis resource is generally assumed to be active if no value is provided for the active element
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Patient.name
Definition

Official name (i.e., legal name) of the patient, corresponding to official in this value set. Issuers SHALL provide a single name element UNLESS they believe providing multiple name elements is critical for verification of the credential. If providing only a single name element, Issuers SHALL NOT populate name.use, and Verifiers SHALL assume that the provided name is official.

ShortOfficial name (i.e., legal name) of patient
Comments

Cardinality for this element is set to 1..* rather than 1..1 as in rare cases there may be a valid rational for including multiple name elements (e.g., for a recent name change that is not yet reflected on a photo ID but will be soon). The Data Minimization version of this profile reflects the rarity of this by setting name to 1..1.

Name parts are typically split between name.family and name.given. For example Marie Salomea Skłodowska Curie would be represented as name.family=“Curie”, and name.given=[“Marie”, “Salomea”, “Skłodowska”].

If it is not clear how to split the parts of a person's name into name.family and name.given, or if a person has a single word for their name, implementers MAY use name.text instead (e.g., name.text=“Marie Salomea Skłodowska Curie”).

Issuers SHOULD make every effort to have the contents of name match what appears on the patient's government-issued photo ID.

Other implementers SHALL support display/processing of name.family/name.given AND name.text.

Control1..*
TypeHumanName
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Need to be able to track the patient by multiple names. Examples are your official name and a partner name.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
vc-name-invariant: Require one of the key name elements to be filled. Allows for `text` for names that cannot be cleanly categorized into `family` and `given` (https://www.nature.com/articles/d41586-020-02761-z). ((family.exists() and given.exists()) xor text.exists())
24. Patient.name.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
26. Patient.name.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 Patient.name.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 28. Patient.name.use
    Definition

    Identifies the purpose for this name.

    Shortusual | official | temp | nickname | anonymous | old | maiden
    Comments

    Applications can assume that a name is current unless it explicitly says that it is temporary or old.

    Control0..1
    BindingThe codes SHALL be taken from NameUse
    (required to http://hl7.org/fhir/ValueSet/name-use|4.0.1)

    The use of a human name.

    Typecode
    Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary or old name etc.for a current/permanent one
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    Allows the appropriate name for a particular context of use to be selected from among a set of names.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    30. Patient.name.text
    Definition

    Specifies the entire name as it should be displayed e.g. on an application UI. This may be provided instead of or as well as the specific parts.

    ShortUse instead of `family` and `given` if the patient's name cannot be easily split into these elements
    Comments

    Can provide both a text representation and parts. Applications updating a name SHALL ensure that when both text and parts are present, no content is included in the text that isn't found in a part.

    Control0..1
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    A renderable, unencoded form.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    32. Patient.name.family
    Definition

    The part of a name that links to the genealogy. In some cultures (e.g. Eritrea) the family name of a son is the first name of his father.

    ShortFamily name (often called 'Surname')
    Comments

    Family Name may be decomposed into specific parts using extensions (de, nl, es related cultures).

    Control0..1
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Alternate Namessurname
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    34. Patient.name.given
    Definition

    Given name.

    ShortParts of patient's name other than their family name that appear on photo ID; e.g., first and middle names
    Comments

    This element is used to represent all parts of a patient's name that are not their family name. For example, Marie Salomea Skłodowska Curie would have three values for name.given: ["Marie", "Salomea", "Skłodowska"].

    Implementers SHOULD include all given name parts that appear on the patient's government-issued photo ID.

    Control0..*
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Alternate Namesfirst name, middle name
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    36. Patient.name.prefix
    Definition

    Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the start of the name.

    ShortParts that come before the name
    Comments

    SHOULD be included if it appears on a government-issued ID.

    Control0..*
    Typestring
    Is Modifierfalse
    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()))
    38. Patient.name.suffix
    Definition

    Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the end of the name.

    ShortParts that come after the name
    Comments

    SHOULD be included if it appears on a government-issued ID.

    Control0..*
    Typestring
    Is Modifierfalse
    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()))
    40. Patient.name.period
    Definition

    Indicates the period of time when this name was valid for the named person.

    ShortTime period when name was/is in use
    Control0..1
    TypePeriod
    Is Modifierfalse
    Summarytrue
    Requirements

    Allows names to be placed in historical context.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    42. Patient.telecom
    Definition

    A contact detail (e.g. a telephone number or an email address) by which the individual may be contacted.

    ShortA contact detail for the individual
    Comments

    A Patient may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently and also to help with identification. The address might not go directly to the individual, but may reach another party that is able to proxy for the patient (i.e. home phone, or pet owner's phone).

    Control0..*
    TypeContactPoint
    Is Modifierfalse
    Summarytrue
    Requirements

    People have (primary) ways to contact them in some way such as phone, email.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    44. Patient.telecom.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
    46. Patient.telecom.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 Patient.telecom.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 48. Patient.telecom.system
      Definition

      Telecommunications form for contact point - what communications system is required to make use of the contact.

      Shortphone | fax | email | pager | url | sms | other
      Control0..1
      This element is affected by the following invariants: cpt-2
      BindingThe codes SHALL be taken from ContactPointSystem
      (required to http://hl7.org/fhir/ValueSet/contact-point-system|4.0.1)

      Telecommunications form for contact point.

      Typecode
      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()))
      50. Patient.telecom.value
      Definition

      The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

      ShortThe actual contact point details
      Comments

      For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Need to support legacy numbers that are not in a tightly controlled format.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      vc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
      52. Patient.telecom.use
      Definition

      Identifies the purpose for the contact point.

      Shorthome | work | temp | old | mobile - purpose of this contact point
      Comments

      Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

      Control0..1
      BindingThe codes SHALL be taken from ContactPointUse
      (required to http://hl7.org/fhir/ValueSet/contact-point-use|4.0.1)

      Use of contact point.

      Typecode
      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary or old contact etc.for a current/permanent one
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      54. Patient.telecom.rank
      Definition

      Specifies a preferred order in which to use a set of contacts. ContactPoints with lower rank values are more preferred than those with higher rank values.

      ShortSpecify preferred order of use (1 = highest)
      Comments

      Note that rank does not necessarily follow the order in which the contacts are represented in the instance.

      Control0..1
      TypepositiveInt
      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()))
      56. Patient.telecom.period
      Definition

      Time period when the contact point was/is in use.

      ShortTime period when the contact point was/is in use
      Control0..1
      TypePeriod
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      58. Patient.gender
      Definition

      Administrative gender.

      Issuers SHALL NOT include gender unless required by law in the jurisdiction where the SMART Health Card is issued.

      Verifiers SHALL NOT use gender in their workflows unless required by law in both the jurisdiction where the SMART Health Card was issued and the jurisdiction governing the Verifier.

      ShortAdministrative gender
      Comments

      SMART Health Cards cannot be used as a form of identification. From the SMART Health Card specification:

      "SMART Health Cards are designed for use alongside existing forms of identification (e.g., a driver's license in person, or an online ID verification service). A SMART Health Card is a non-forgeable digital artifact analogous to a paper record on official letterhead. Concretely, the problem SMART Health Cards solve is one of provenance: a digitally signed SMART Health Card is a credential that guarantees that a specific issuer generated the record. The duty of verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject) falls to the person or system receiving and validating a Health Card."

      To facilitate verifying that the person presenting a Health Card is the subject of the data within the Health Card (or is authorized to act on behalf of this data subject), the patient's name and date of birth are included the SMART Health Card. Gender is typically not included because name and date of birth are sufficient for verification workflows, and there may be legitimate reasons why gender in a SMART Health Card does not match that in an existing form of identification (e.g., a change in administrative gender, or differences in how gender is represented). Note that it may not be possible to get a re-issued SMART Health Card if a patient's administrative gender changes.

      Additionally, patients may not wish to share their administrative gender with Verifiers. Since this information is typically not necessary for the Verifiers' use case, it should be omitted as is consistent with the privacy by design approach used throughout this IG.

      Control0..1
      BindingThe codes SHALL be taken from AdministrativeGender
      (required to http://hl7.org/fhir/ValueSet/administrative-gender|4.0.1)

      The gender of a person used for administrative purposes.

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Needed for identification of the individual, in combination with (at least) name and birth date.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      use-only-if-required-by-law: SHALL be omitted UNLESS required by law in jurisdiction where SHC is issued ($this.length() = 0)
      60. Patient.birthDate
      Definition

      The date of birth for the individual.

      ShortThe date of birth for the individual
      Comments

      If exact date of birth is partially or completely unknown, Issuers SHALL populate this element with the date of birth information listed on the patient's government-issued identification. This MAY include a partial date of birth like 1999 or 1999-01, or "filler" for unknown portions. (E.g., if a patient was born in 1950 but does not know the month or day, their government-issued identification may fill the month and day with -01-01. In this case, it is acceptable to populate this element with 1950-01-01 even if it is known the patient was not actually born on January 1.) If date of birth is completely unknown and no government-issued identification is available, Issuers MAY omit this element.

      Control0..1
      Typedate
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      Age of the individual drives many clinical processes.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      LOINC Code21112-8
      62. Patient.deceased[x]
      Definition

      Indicates if the individual is deceased or not.

      ShortIndicates if the individual is deceased or not
      Comments

      If there's no value in the instance, it means there is no statement on whether or not the individual is deceased. Most systems will interpret the absence of a value as a sign of the person being alive.

      Control0..1
      TypeChoice of: boolean, dateTime
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifiertrue because This element is labeled as a modifier because once a patient is marked as deceased, the actions that are appropriate to perform on the patient may be significantly different.
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      The fact that a patient is deceased influences the clinical process. Also, in human communication and relation management it is necessary to know whether the person is alive.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      64. Patient.address
      Definition

      An address for the individual.

      ShortAn address for the individual
      Comments

      Patient may have multiple addresses with different uses or applicable periods.

      Control0..*
      TypeAddress
      Is Modifierfalse
      Summarytrue
      Requirements

      May need to keep track of patient addresses for contacting, billing or reporting requirements and also to help with identification.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      66. Patient.address.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
      68. Patient.address.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 Patient.address.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 70. Patient.address.use
        Definition

        The purpose of this address.

        Shorthome | work | temp | old | billing - purpose of this address
        Comments

        Applications can assume that an address is current unless it explicitly says that it is temporary or old.

        Control0..1
        BindingThe codes SHALL be taken from AddressUse
        (required to http://hl7.org/fhir/ValueSet/address-use|4.0.1)

        The use of an address.

        Typecode
        Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary or old address etc.for a current/permanent one
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Allows an appropriate address to be chosen from a list of many.

        Example<br/><b>General</b>:home
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        72. Patient.address.type
        Definition

        Distinguishes between physical addresses (those you can visit) and mailing addresses (e.g. PO Boxes and care-of addresses). Most addresses are both.

        Shortpostal | physical | both
        Comments

        The definition of Address states that "address is intended to describe postal addresses, not physical locations". However, many applications track whether an address has a dual purpose of being a location that can be visited as well as being a valid delivery destination, and Postal addresses are often used as proxies for physical locations (also see the Location resource).

        Control0..1
        BindingThe codes SHALL be taken from AddressType
        (required to http://hl7.org/fhir/ValueSet/address-type|4.0.1)

        The type of an address (physical / postal).

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Example<br/><b>General</b>:both
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        74. Patient.address.text
        Definition

        Full physical address SHALL not be included because of patient privacy concerns.

        ShortSHALL not be included
        Comments

        There are scenarios where a Holder of a credential may wish to present their credential without revealing their full physical address.

        Control0..0
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        A renderable, unencoded form.

        Example<br/><b>General</b>:137 Nowhere Street, Erewhon 9132
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        76. Patient.address.line
        Definition

        Full physical address SHALL not be included because of patient privacy concerns.

        ShortSHALL not be included
        Comments

        There are scenarios where a Holder of a credential may wish to present their credential without revealing their full physical address.

        Control0..0
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Example<br/><b>General</b>:137 Nowhere Street
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        78. Patient.address.city
        Definition

        The name of the city, town, suburb, village or other community or delivery center.

        ShortName of city, town etc.
        Comments

        For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Alternate NamesMunicpality
        Example<br/><b>General</b>:Erewhon
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        vc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
        80. Patient.address.district
        Definition

        The name of the administrative area (county).

        ShortDistrict name (aka county)
        Comments

        For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Alternate NamesCounty
        Example<br/><b>General</b>:Madison
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        vc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
        82. Patient.address.state
        Definition

        Sub-unit of a country with limited sovereignty in a federally organized country. A code may be used if codes are in common use (e.g. US 2 letter state codes).

        ShortSub-unit of country (abbreviations ok)
        Comments

        For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Alternate NamesProvince, Territory
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        vc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
        84. Patient.address.postalCode
        Definition

        A postal code designating a region defined by the postal service.

        ShortPostal code for area
        Comments

        For patient privacy reasons, this element SHALL NOT be populated unless the Issuer believes the credential cannot be verified in its absence.

        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Alternate NamesZip
        Example<br/><b>General</b>:9132
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        vc-should-be-omitted-privacy: SHOULD be omitted to protect privacy and for data minimization. ($this.length() = 0)
        86. Patient.address.country
        Definition

        Country - a nation as commonly understood or generally accepted.

        ShortCountry (e.g. can be ISO 3166 2 or 3 letter code)
        Comments

        ISO 3166 3 letter codes can be used in place of a human readable country name.

        Control0..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()))
        88. Patient.address.period
        Definition

        Time period when address was/is in use.

        ShortTime period when address was/is in use
        Control0..1
        TypePeriod
        Is Modifierfalse
        Summarytrue
        Requirements

        Allows addresses to be placed in historical context.

        Example<br/><b>General</b>:{ "start" : "2010-03-23", "end" : "2010-07-01" }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        90. Patient.maritalStatus
        Definition

        This field contains a patient's most recent marital (civil) status.

        ShortMarital (civil) status of a patient
        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from Marital Status Codes
        (extensible to http://hl7.org/fhir/ValueSet/marital-status)

        The domestic partnership status of a person.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Requirements

        Most, if not all systems capture it.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        92. Patient.multipleBirth[x]
        Definition

        Indicates whether the patient is part of a multiple (boolean) or indicates the actual birth order (integer).

        ShortWhether patient is part of a multiple birth
        Comments

        Where the valueInteger is provided, the number is the birth number in the sequence. E.g. The middle birth in triplets would be valueInteger=2 and the third born would have valueInteger=3 If a boolean value was provided for this triplets example, then all 3 patient records would have valueBoolean=true (the ordering is not indicated).

        Control0..1
        TypeChoice of: boolean, integer
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Requirements

        For disambiguation of multiple-birth children, especially relevant where the care provider doesn't meet the patient, such as labs.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        94. Patient.photo
        Definition

        Image of the patient.

        ShortImage of the patient
        Comments

        Attachments are not allowed due to data size constraints.

        Control0..0
        TypeAttachment
        Is Modifierfalse
        Summaryfalse
        Requirements

        Many EHR systems have the capability to capture an image of the patient. Fits with newer social media usage too.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        96. Patient.contact
        Definition

        A contact party (e.g. guardian, partner, friend) for the patient.

        ShortA contact party (e.g. guardian, partner, friend) for the patient
        Comments

        Contact covers all kinds of contact parties: family members, business contacts, guardians, caregivers. Not applicable to register pedigree and family ties beyond use of having contact.

        Control0..0
        TypeBackboneElement
        Is Modifierfalse
        Summaryfalse
        Requirements

        Need to track people you can contact about the patient.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        pat-1: SHALL at least contain a contact's details or a reference to an organization (name.exists() or telecom.exists() or address.exists() or organization.exists())
        108. Patient.communication
        Definition

        A language which may be used to communicate with the patient about his or her health.

        ShortA language which may be used to communicate with the patient about his or her health
        Comments

        If no language is specified, this implies that the default local language is spoken. If you need to convey proficiency for multiple modes, then you need multiple Patient.Communication associations. For animals, language is not a relevant field, and should be absent from the instance. If the Patient does not speak the default local language, then the Interpreter Required Standard can be used to explicitly declare that an interpreter is required.

        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Summaryfalse
        Requirements

        If a patient does not speak the local language, interpreters may be required, so languages spoken and proficiency are important things to keep track of both for patient and other persons of interest.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        110. Patient.communication.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
        112. Patient.communication.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())
        114. Patient.communication.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())
        116. Patient.communication.language
        Definition

        The ISO-639-1 alpha 2 code in lower case for the language, optionally followed by a hyphen and the ISO-3166-1 alpha 2 code for the region in upper case; e.g. "en" for English, or "en-US" for American English versus "en-EN" for England English.

        ShortThe language which can be used to communicate with the patient about his or her health
        Comments

        The structure aa-BB with this exact casing is one the most widely used notations for locale. However not all systems actually code this but instead have it as free text. Hence CodeableConcept instead of code as the data type.

        Control1..1
        BindingThe codes SHOULD be taken from CommonLanguages
        (preferred to http://hl7.org/fhir/ValueSet/languages)

        A human language.

        Additional BindingsPurpose
        AllLanguagesMax Binding
        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Requirements

        Most systems in multilingual countries will want to convey language. Not all systems actually need the regional dialect.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        118. Patient.communication.preferred
        Definition

        Indicates whether or not the patient prefers this language (over other languages he masters up a certain level).

        ShortLanguage preference indicator
        Comments

        This language is specifically identified for communicating healthcare information.

        Control0..1
        Typeboolean
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Requirements

        People that master multiple languages up to certain level may prefer one or more, i.e. feel more confident in communicating in a particular language making other languages sort of a fall back method.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        120. Patient.generalPractitioner
        Definition

        Patient's nominated care provider.

        ShortPatient's nominated primary care provider
        Comments

        This may be the primary care provider (in a GP context), or it may be a patient nominated care manager in a community/disability setting, or even organization that will provide people to perform the care provider roles. It is not to be used to record Care Teams, these should be in a CareTeam resource that may be linked to the CarePlan or EpisodeOfCare resources. Multiple GPs may be recorded against the patient for various reasons, such as a student that has his home GP listed along with the GP at university during the school semesters, or a "fly-in/fly-out" worker that has the onsite GP also included with his home GP to remain aware of medical issues.

        Jurisdictions may decide that they can profile this down to 1 if desired, or 1 per type.

        Control0..*
        TypeReference(Organization, Practitioner, PractitionerRole)
        Is Modifierfalse
        Summaryfalse
        Alternate NamescareProvider
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        122. Patient.managingOrganization
        Definition

        Organization that is the custodian of the patient record.

        ShortOrganization that is the custodian of the patient record
        Comments

        There is only one managing organization for a specific patient record. Other organizations will have their own Patient record, and may use the Link property to join the records together (or a Person resource which can include confidence ratings for the association).

        Control0..1
        TypeReference(Organization)
        Is Modifierfalse
        Summarytrue
        Requirements

        Need to know who recognizes this patient record, manages and updates it.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        124. Patient.link
        Definition

        Link to another patient resource that concerns the same actual patient.

        ShortLink to another patient resource that concerns the same actual person
        Comments

        There is no assumption that linked patient records have mutual links.

        Control0..*
        TypeBackboneElement
        Is Modifiertrue because This element is labeled as a modifier because it might not be the main Patient resource, and the referenced patient should be used instead of this Patient record. This is when the link.type value is 'replaced-by'
        Summarytrue
        Requirements

        There are multiple use cases:

        • Duplicate patient records due to the clerical errors associated with the difficulties of identifying humans consistently, and
        • Distribution of patient information across multiple servers.
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        126. Patient.link.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
        128. Patient.link.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())
        130. Patient.link.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())
        132. Patient.link.other
        Definition

        The other patient resource that the link refers to.

        ShortThe other patient or related person resource that the link refers to
        Comments

        Referencing a RelatedPerson here removes the need to use a Person record to associate a Patient and RelatedPerson as the same individual.

        Control1..1
        TypeReference(Patient, RelatedPerson)
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        134. Patient.link.type
        Definition

        The type of link between this patient resource and another patient resource.

        Shortreplaced-by | replaces | refer | seealso
        Control1..1
        BindingThe codes SHALL be taken from LinkType
        (required to http://hl7.org/fhir/ValueSet/link-type|4.0.1)

        The type of link between this patient resource and another patient resource.

        Typecode
        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()))