Consolidated CDA Release 2.1 StructureDefinition Publication
2.1 - CI Build United States of America flag

Consolidated CDA Release 2.1 StructureDefinition Publication, published by Health Level Seven. This is not an authorized publication; it is the continuous build for version 2.1). This version is based on the current content of https://github.com/HL7/CDA-ccda-2.1-sd/ and changes regularly. See the Directory of published versions

Logical Model: PatientReferralAct - Detailed Descriptions

Draft as of 2023-09-29

Definitions for the PatientReferralAct logical model.

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

0. Act
XML FormatIn the XML format, this property has the namespace urn:hl7-org:v3.
2. Act.classCode
Comments

SHALL contain exactly one [1..1] @classCode="PCPR" provision of care (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-30884).

Fixed ValuePCPR
4. Act.moodCode
Comments

SHALL contain exactly one [1..1] @moodCode, which SHALL be selected from ValueSet Patient Referral Act moodCode urn:oid:2.16.840.1.113883.11.20.9.66 STATIC 2014-09-01 (CONF:1098-30885).

BindingThe codes SHALL be taken from Patient Referral Act moodCode
6. Act.templateId
Control1..?
SlicingThis element introduces a set of slices on Act.templateId. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • value @ root
8. Act.templateId:primary
Slice Nameprimary
Comments

SHALL contain exactly one [1..1] templateId (CONF:1098-30886) such that it, SHALL not contain [0..0] extension.

Control1..1
10. Act.templateId:primary.root
Comments

SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.140" (CONF:1098-30887).

Control1..?
Pattern Value2.16.840.1.113883.10.20.22.4.140
12. Act.templateId:primary.extension
Control0..0
14. Act.id
ShortIn the case of a Consultation Note where this referral is being fulfilled by this consultation, this id would be referenced in the inFullfilmentOf/order/id of the Consultation Note.
Comments

SHALL contain at least one [1..*] id (CONF:1098-30888).

Control1..?
16. Act.code
Comments

SHALL contain exactly one [1..1] code, which SHALL be selected from ValueSet Referral Types urn:oid:2.16.840.1.113883.11.20.9.56 DYNAMIC (CONF:1098-30889).

BindingThe codes SHALL be taken from Referral Types
18. Act.statusCode
Comments

SHALL contain exactly one [1..1] statusCode (CONF:1098-30892).

Control1..?
20. Act.statusCode.code
Comments

This statusCode SHALL contain exactly one [1..1] @code="active" Active (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31598).

Control1..?
Fixed Valueactive
22. Act.effectiveTime
ShortThe effectiveTime represents the time when the future referral is intended to take place.
Comments

SHALL contain exactly one [1..1] effectiveTime (CONF:1098-30893).

Control1..?
24. Act.priorityCode
Comments

SHOULD contain zero or one [0..1] priorityCode (CONF:1098-32623).

26. Act.author
Comments

SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-31612).

Typehttp://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
28. Act.participant
Comments

MAY contain zero or more [0..*] participant (CONF:1098-32635).

30. Act.participant.typeCode
Comments

The participant, if present, SHALL contain exactly one [1..1] @typeCode="REFT" Referred to (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-32638).

Control1..?
Fixed ValueREFT
32. Act.participant.participantRole
Comments

The participant, if present, SHALL contain exactly one [1..1] participantRole (CONF:1098-32636).

34. Act.participant.participantRole.code
Comments

This participantRole MAY contain zero or one [0..1] code, which SHOULD be selected from ValueSet Healthcare Provider Taxonomy urn:oid:2.16.840.1.114222.4.11.1066 DYNAMIC (CONF:1098-32637).

BindingThe codes SHOULD be taken from Healthcare Provider Taxonomy
36. Act.entryRelationship
ShortThe following entryRelationship represents a reference to another act in the document instance representing the clinical reason for the referral (e.g., problem, concern, procedure).
SlicingThis element introduces a set of slices on Act.entryRelationship. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • profile @ observation
38. Act.entryRelationship:entryRelationship1
Slice NameentryRelationship1
ShortThe following entryRelationship represents whether the referral is for full or shared care.
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31604) such that it

Control0..*
40. Act.entryRelationship:entryRelationship1.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="SUBJ" has subject (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31613).

Fixed ValueSUBJ
42. Act.entryRelationship:entryRelationship1.observation
Comments

SHALL contain exactly one [1..1] observation (CONF:1098-31605).

Control1..?
44. Act.entryRelationship:entryRelationship1.observation.classCode
Comments

This observation SHALL contain exactly one [1..1] @classCode="OBS" observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6) (CONF:1098-31606).

Fixed ValueOBS
46. Act.entryRelationship:entryRelationship1.observation.moodCode
Comments

This observation SHALL contain exactly one [1..1] @moodCode="RQO" request (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001) (CONF:1098-31607).

Fixed ValueRQO
48. Act.entryRelationship:entryRelationship1.observation.code
Comments

This observation SHALL contain exactly one [1..1] code (CONF:1098-31608).

50. Act.entryRelationship:entryRelationship1.observation.code.code
Comments

This code SHALL contain exactly one [1..1] @code="ASSERTION" assertion (CONF:1098-31619).

Control1..?
Pattern ValueASSERTION
52. Act.entryRelationship:entryRelationship1.observation.code.codeSystem
Comments

This code SHALL contain exactly one [1..1] @codeSystem="2.16.840.1.113883.5.4 " (CodeSystem: HL7ActCode urn:oid:2.16.840.1.113883.5.4) (CONF:1098-31620).

Control1..?
Pattern Value2.16.840.1.113883.5.4
54. Act.entryRelationship:entryRelationship1.observation.statusCode
Comments

This observation SHALL contain exactly one [1..1] statusCode (CONF:1098-31614).

Control1..?
56. Act.entryRelationship:entryRelationship1.observation.statusCode.code
Comments

This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31615).

Control1..?
Fixed Valuecompleted
58. Act.entryRelationship:entryRelationship1.observation.priorityCode
Comments

This observation SHOULD contain zero or one [0..1] priorityCode, which SHOULD be selected from ValueSet ActPriority urn:oid:2.16.840.1.113883.1.11.16866 DYNAMIC (CONF:1098-32443).

BindingThe codes SHOULD be taken from ActPriority
60. Act.entryRelationship:entryRelationship1.observation.value
Comments

This observation SHALL contain exactly one [1..1] value with @xsi:type="CD", where the code SHOULD be selected from ValueSet Care Model urn:oid:2.16.840.1.113883.11.20.9.61 DYNAMIC (CONF:1098-31611).

Control1..1
BindingThe codes SHOULD be taken from Care Model
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
62. Act.entryRelationship:indication
Slice Nameindication
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31635) such that it

Control0..*
64. Act.entryRelationship:indication.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="RSON" has reason (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31636).

Fixed ValueRSON
66. Act.entryRelationship:indication.observation
Comments

SHALL contain exactly one [1..1] Indication (identifier: urn:hl7ii:2.16.840.1.113883.10.20.22.4.19:2014-06-09) (CONF:1098-32634).

Control1..?
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Observation(Indication)

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

0. Act
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Control10..1*
Is Modifierfalse
XML FormatIn the XML format, this property has the namespace urn:hl7-org:v3.
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. Act.classCode
Definition

Element Act.classCode

Comments

SHALL contain exactly one [1..1] @classCode="PCPR" provision of care (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-30884).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValuePCPR
4. Act.moodCode
Comments

SHALL contain exactly one [1..1] @moodCode, which SHALL be selected from ValueSet Patient Referral Act moodCode urn:oid:2.16.840.1.113883.11.20.9.66 STATIC 2014-09-01 (CONF:1098-30885).

Control1..1
BindingThe codes SHALL be taken from Patient Referral Act moodCode
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
6. Act.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control1..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
SlicingThis element introduces a set of slices on Act.templateId. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • value @ root
8. Act.templateId:primary
Slice Nameprimary
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Comments

SHALL contain exactly one [1..1] templateId (CONF:1098-30886) such that it, SHALL not contain [0..0] extension.

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
10. Act.templateId:primary.root
Definition

A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.

Comments

SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.140" (CONF:1098-30887).

Control1..1
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelRoot
Pattern Value2.16.840.1.113883.10.20.22.4.140
12. Act.templateId:primary.extension
Definition

A character string as a unique identifier within the scope of the identifier root.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExtension
14. Act.id
ShortIn the case of a Consultation Note where this referral is being fulfilled by this consultation, this id would be referenced in the inFullfilmentOf/order/id of the Consultation Note.
Comments

SHALL contain at least one [1..*] id (CONF:1098-30888).

Control1..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
16. Act.code
Comments

SHALL contain exactly one [1..1] code, which SHALL be selected from ValueSet Referral Types urn:oid:2.16.840.1.113883.11.20.9.56 DYNAMIC (CONF:1098-30889).

Control1..1
BindingThe codes SHALL be taken from Referral Types
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
18. Act.statusCode
Comments

SHALL contain exactly one [1..1] statusCode (CONF:1098-30892).

Control1..1
BindingThe codes SHALL be taken from ActStatus
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
20. Act.statusCode.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This statusCode SHALL contain exactly one [1..1] @code="active" Active (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31598).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Fixed Valueactive
22. Act.statusCode.codeSystem
Definition

Specifies the code system that defines the code.

Control0..0
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
24. Act.statusCode.codeSystemName
Definition

The common name of the coding system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Name
26. Act.statusCode.codeSystemVersion
Definition

If applicable, a version descriptor defined specifically for the given code system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Version
28. Act.statusCode.displayName
Definition

A name or title for the code, under which the sending system shows the code value to its users.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplay Name
30. Act.statusCode.originalText
Definition

The text or phrase used as the basis for the coding.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
LabelOriginal Text
32. Act.statusCode.qualifier
Definition

Specifies additional codes that increase the specificity of the the primary code.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CR
LabelQualifier
34. Act.statusCode.translation
Definition

A set of other concept descriptors that translate this concept descriptor into other code systems.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
LabelTranslation
36. Act.effectiveTime
ShortThe effectiveTime represents the time when the future referral is intended to take place.
Comments

SHALL contain exactly one [1..1] effectiveTime (CONF:1098-30893).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
38. Act.priorityCode
Comments

SHOULD contain zero or one [0..1] priorityCode (CONF:1098-32623).

Control0..1
BindingUnless not suitable, these codes SHALL be taken from ActPriority
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
40. Act.author
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Comments

SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-31612).

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. Act.participant
Comments

MAY contain zero or more [0..*] participant (CONF:1098-32635).

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Participant2
44. Act.participant.typeCode
Comments

The participant, if present, SHALL contain exactly one [1..1] @typeCode="REFT" Referred to (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-32638).

Control1..1
BindingThe codes SHALL be taken from ParticipationType
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueREFT
46. Act.participant.participantRole
Comments

The participant, if present, SHALL contain exactly one [1..1] participantRole (CONF:1098-32636).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ParticipantRole
48. Act.participant.participantRole.classCode
Control1..1
BindingThe codes SHALL be taken from RoleClassRoot
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Default ValueROL
50. Act.participant.participantRole.code
Comments

This participantRole MAY contain zero or one [0..1] code, which SHOULD be selected from ValueSet Healthcare Provider Taxonomy urn:oid:2.16.840.1.114222.4.11.1066 DYNAMIC (CONF:1098-32637).

Control0..1
BindingThe codes SHOULD be taken from Healthcare Provider Taxonomy
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
52. Act.entryRelationship
ShortThe following entryRelationship represents a reference to another act in the document instance representing the clinical reason for the referral (e.g., problem, concern, procedure).
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
SlicingThis element introduces a set of slices on Act.entryRelationship. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • profile @ observation
54. Act.entryRelationship:entryRelationship1
Slice NameentryRelationship1
ShortThe following entryRelationship represents whether the referral is for full or shared care.
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31604) such that it

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
56. Act.entryRelationship:entryRelationship1.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="SUBJ" has subject (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31613).

Control1..1
BindingThe codes SHALL be taken from x_ActRelationshipEntryRelationship
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueSUBJ
58. Act.entryRelationship:entryRelationship1.observation
Comments

SHALL contain exactly one [1..1] observation (CONF:1098-31605).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Observation
60. Act.entryRelationship:entryRelationship1.observation.classCode
Comments

This observation SHALL contain exactly one [1..1] @classCode="OBS" observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6) (CONF:1098-31606).

Control1..1
BindingThe codes SHALL be taken from ActClassObservation
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueOBS
62. Act.entryRelationship:entryRelationship1.observation.moodCode
Comments

This observation SHALL contain exactly one [1..1] @moodCode="RQO" request (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001) (CONF:1098-31607).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueRQO
64. Act.entryRelationship:entryRelationship1.observation.code
Definition

Describes what was observed. Sometimes this is called the observation "name".

ShortType of observation (code / type)
Comments

This observation SHALL contain exactly one [1..1] code (CONF:1098-31608).


All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
This element is affected by the following invariants: obs-7
BindingUnless not suitable, these codes SHALL be taken from For example codes, see ObservationTypehttp://hl7.org/fhir/ValueSet/observation-codes
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CDCodeableConcept
Is Modifierfalse
XML FormatThe type of this property is determined using the xsi:typeattribute.
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Alternate NamesName
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Act.entryRelationship:entryRelationship1.observation.code.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This code SHALL contain exactly one [1..1] @code="ASSERTION" assertion (CONF:1098-31619).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Pattern ValueASSERTION
68. Act.entryRelationship:entryRelationship1.observation.code.codeSystem
Definition

Specifies the code system that defines the code.

Comments

This code SHALL contain exactly one [1..1] @codeSystem="2.16.840.1.113883.5.4 " (CodeSystem: HL7ActCode urn:oid:2.16.840.1.113883.5.4) (CONF:1098-31620).

Control1..1
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
Pattern Value2.16.840.1.113883.5.4
70. Act.entryRelationship:entryRelationship1.observation.statusCode
Comments

This observation SHALL contain exactly one [1..1] statusCode (CONF:1098-31614).

Control1..1
BindingThe codes SHALL be taken from ActStatus
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
72. Act.entryRelationship:entryRelationship1.observation.statusCode.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31615).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Fixed Valuecompleted
74. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystem
Definition

Specifies the code system that defines the code.

Control0..0
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
76. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystemName
Definition

The common name of the coding system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Name
78. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystemVersion
Definition

If applicable, a version descriptor defined specifically for the given code system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Version
80. Act.entryRelationship:entryRelationship1.observation.statusCode.displayName
Definition

A name or title for the code, under which the sending system shows the code value to its users.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplay Name
82. Act.entryRelationship:entryRelationship1.observation.statusCode.originalText
Definition

The text or phrase used as the basis for the coding.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
LabelOriginal Text
84. Act.entryRelationship:entryRelationship1.observation.statusCode.qualifier
Definition

Specifies additional codes that increase the specificity of the the primary code.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CR
LabelQualifier
86. Act.entryRelationship:entryRelationship1.observation.statusCode.translation
Definition

A set of other concept descriptors that translate this concept descriptor into other code systems.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
LabelTranslation
88. Act.entryRelationship:entryRelationship1.observation.priorityCode
Comments

This observation SHOULD contain zero or one [0..1] priorityCode, which SHOULD be selected from ValueSet ActPriority urn:oid:2.16.840.1.113883.1.11.16866 DYNAMIC (CONF:1098-32443).

Control0..1
BindingThe codes SHOULD be taken from ActPriority
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
90. Act.entryRelationship:entryRelationship1.observation.value
Comments

This observation SHALL contain exactly one [1..1] value with @xsi:type="CD", where the code SHOULD be selected from ValueSet Care Model urn:oid:2.16.840.1.113883.11.20.9.61 DYNAMIC (CONF:1098-31611).

Control1..1
BindingThe codes SHOULD be taken from Care Model
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
92. Act.entryRelationship:indication
Slice Nameindication
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31635) such that it

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
94. Act.entryRelationship:indication.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="RSON" has reason (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31636).

Control1..1
BindingThe codes SHALL be taken from x_ActRelationshipEntryRelationship
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueRSON
96. Act.entryRelationship:indication.observation
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Comments

SHALL contain exactly one [1..1] Indication (identifier: urn:hl7ii:2.16.840.1.113883.10.20.22.4.19:2014-06-09) (CONF:1098-32634).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Observation(Indication)
Is Modifierfalse
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. Act
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Control1..1
Is Modifierfalse
XML FormatIn the XML format, this property has the namespace urn:hl7-org:v3.
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. Act.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
4. Act.classCode
Definition

Element Act.classCode

Comments

SHALL contain exactly one [1..1] @classCode="PCPR" provision of care (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-30884).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValuePCPR
6. Act.moodCode
Comments

SHALL contain exactly one [1..1] @moodCode, which SHALL be selected from ValueSet Patient Referral Act moodCode urn:oid:2.16.840.1.113883.11.20.9.66 STATIC 2014-09-01 (CONF:1098-30885).

Control1..1
BindingThe codes SHALL be taken from Patient Referral Act moodCode
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
8. Act.realmCode
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
10. Act.typeId
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
12. Act.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control1..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
SlicingThis element introduces a set of slices on Act.templateId. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • value @ root
14. Act.templateId:primary
Slice Nameprimary
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Comments

SHALL contain exactly one [1..1] templateId (CONF:1098-30886) such that it, SHALL not contain [0..0] extension.

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
16. Act.templateId:primary.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
18. Act.templateId:primary.assigningAuthorityName
Definition

A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelAssigning Authority Name
20. Act.templateId:primary.displayable
Definition

Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).

Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplayable
22. Act.templateId:primary.root
Definition

A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.

Comments

SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.140" (CONF:1098-30887).

Control1..1
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelRoot
Pattern Value2.16.840.1.113883.10.20.22.4.140
24. Act.templateId:primary.extension
Definition

A character string as a unique identifier within the scope of the identifier root.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExtension
26. Act.id
ShortIn the case of a Consultation Note where this referral is being fulfilled by this consultation, this id would be referenced in the inFullfilmentOf/order/id of the Consultation Note.
Comments

SHALL contain at least one [1..*] id (CONF:1098-30888).

Control1..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
28. Act.code
Comments

SHALL contain exactly one [1..1] code, which SHALL be selected from ValueSet Referral Types urn:oid:2.16.840.1.113883.11.20.9.56 DYNAMIC (CONF:1098-30889).

Control1..1
BindingThe codes SHALL be taken from Referral Types
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
30. Act.negationInd
Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
32. Act.text
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
34. Act.statusCode
Comments

SHALL contain exactly one [1..1] statusCode (CONF:1098-30892).

Control1..1
BindingThe codes SHALL be taken from ActStatus
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
36. Act.statusCode.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
38. Act.statusCode.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This statusCode SHALL contain exactly one [1..1] @code="active" Active (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31598).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Fixed Valueactive
40. Act.statusCode.codeSystem
Definition

Specifies the code system that defines the code.

Control0..0
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
42. Act.statusCode.codeSystemName
Definition

The common name of the coding system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Name
44. Act.statusCode.codeSystemVersion
Definition

If applicable, a version descriptor defined specifically for the given code system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Version
46. Act.statusCode.displayName
Definition

A name or title for the code, under which the sending system shows the code value to its users.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplay Name
48. Act.statusCode.sdtcValueSet
Definition

The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.

Control0..1
Typestring(oid: ISO Object Identifier)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSet.
50. Act.statusCode.sdtcValueSetVersion
Definition

The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSetVersion.
52. Act.statusCode.originalText
Definition

The text or phrase used as the basis for the coding.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
LabelOriginal Text
54. Act.statusCode.qualifier
Definition

Specifies additional codes that increase the specificity of the the primary code.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CR
LabelQualifier
56. Act.statusCode.translation
Definition

A set of other concept descriptors that translate this concept descriptor into other code systems.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
LabelTranslation
58. Act.effectiveTime
ShortThe effectiveTime represents the time when the future referral is intended to take place.
Comments

SHALL contain exactly one [1..1] effectiveTime (CONF:1098-30893).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
60. Act.priorityCode
Comments

SHOULD contain zero or one [0..1] priorityCode (CONF:1098-32623).

Control0..1
BindingUnless not suitable, these codes SHALL be taken from ActPriority
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
62. Act.languageCode
Control0..1
BindingThe codes SHALL be taken from HumanLanguage
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
64. Act.subject
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Subject
66. Act.specimen
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Specimen
68. Act.performer
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Performer2
70. Act.author
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Comments

SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-31612).

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
72. Act.informant
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Informant
74. Act.participant
Comments

MAY contain zero or more [0..*] participant (CONF:1098-32635).

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Participant2
76. Act.participant.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
78. Act.participant.typeCode
Comments

The participant, if present, SHALL contain exactly one [1..1] @typeCode="REFT" Referred to (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-32638).

Control1..1
BindingThe codes SHALL be taken from ParticipationType
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueREFT
80. Act.participant.contextControlCode
Control0..1
BindingThe codes SHALL be taken from ContextControl
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueOP
82. Act.participant.realmCode
Definition

When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
84. Act.participant.typeId
Definition

When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.

Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
86. Act.participant.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
88. Act.participant.sdtcFunctionCode
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
XML FormatIn the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namefunctionCode.
90. Act.participant.time
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
92. Act.participant.awarenessCode
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
94. Act.participant.participantRole
Comments

The participant, if present, SHALL contain exactly one [1..1] participantRole (CONF:1098-32636).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ParticipantRole
96. Act.participant.participantRole.classCode
Control1..1
BindingThe codes SHALL be taken from RoleClassRoot
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Default ValueROL
98. Act.participant.participantRole.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
100. Act.participant.participantRole.id
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
102. Act.participant.participantRole.sdtcIdentifiedBy
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IdentifiedBy
XML FormatIn the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual nameidentifiedBy.
104. Act.participant.participantRole.code
Comments

This participantRole MAY contain zero or one [0..1] code, which SHOULD be selected from ValueSet Healthcare Provider Taxonomy urn:oid:2.16.840.1.114222.4.11.1066 DYNAMIC (CONF:1098-32637).

Control0..1
BindingThe codes SHOULD be taken from Healthcare Provider Taxonomy
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
106. Act.participant.participantRole.addr
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/AD
108. Act.participant.participantRole.telecom
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/TEL
110. Act.participant.participantRole.playingDevice
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Device
112. Act.participant.participantRole.playingEntity
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/PlayingEntity
114. Act.participant.participantRole.scopingEntity
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Entity
116. Act.entryRelationship
ShortThe following entryRelationship represents a reference to another act in the document instance representing the clinical reason for the referral (e.g., problem, concern, procedure).
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
SlicingThis element introduces a set of slices on Act.entryRelationship. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators:
  • profile @ observation
118. Act.entryRelationship:entryRelationship1
Slice NameentryRelationship1
ShortThe following entryRelationship represents whether the referral is for full or shared care.
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31604) such that it

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
120. Act.entryRelationship:entryRelationship1.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
122. Act.entryRelationship:entryRelationship1.realmCode
Definition

When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
124. Act.entryRelationship:entryRelationship1.typeId
Definition

When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.

Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
126. Act.entryRelationship:entryRelationship1.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
128. Act.entryRelationship:entryRelationship1.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="SUBJ" has subject (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31613).

Control1..1
BindingThe codes SHALL be taken from x_ActRelationshipEntryRelationship
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueSUBJ
130. Act.entryRelationship:entryRelationship1.inversionInd
Definition

The entryRelationship.inversionInd can be set to "true" to indicate that the relationship should be interpreted as if the roles of the source and target entries were reversed.

Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
132. Act.entryRelationship:entryRelationship1.contextConductionInd
Definition

The entryRelationship.contextConductionInd differs from the otherwise common use of this attribute in that in all other cases where this attribute is used, the value is fixed at "true", whereas here the value is defaulted to "true", and can be changed to "false" when referencing an entry in the same document. Setting the context conduction to false when referencing an entry in the same document keeps clear the fact that the referenced object retains its original context.

Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Default Valuetrue
134. Act.entryRelationship:entryRelationship1.negationInd
Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
136. Act.entryRelationship:entryRelationship1.sequenceNumber
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/INT
138. Act.entryRelationship:entryRelationship1.seperatableInd
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/BL
140. Act.entryRelationship:entryRelationship1.act
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Act
142. Act.entryRelationship:entryRelationship1.encounter
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Encounter
144. Act.entryRelationship:entryRelationship1.observation
Comments

SHALL contain exactly one [1..1] observation (CONF:1098-31605).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Observation
146. Act.entryRelationship:entryRelationship1.observation.classCode
Comments

This observation SHALL contain exactly one [1..1] @classCode="OBS" observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6) (CONF:1098-31606).

Control1..1
BindingThe codes SHALL be taken from ActClassObservation
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueOBS
148. Act.entryRelationship:entryRelationship1.observation.moodCode
Comments

This observation SHALL contain exactly one [1..1] @moodCode="RQO" request (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001) (CONF:1098-31607).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueRQO
150. Act.entryRelationship:entryRelationship1.observation.negationInd
Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
152. Act.entryRelationship:entryRelationship1.observation.realmCode
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
154. Act.entryRelationship:entryRelationship1.observation.typeId
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
156. Act.entryRelationship:entryRelationship1.observation.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
158. Act.entryRelationship:entryRelationship1.observation.id
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
160. Act.entryRelationship:entryRelationship1.observation.code
Comments

This observation SHALL contain exactly one [1..1] code (CONF:1098-31608).

Control1..1
BindingUnless not suitable, these codes SHALL be taken from ObservationType
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
162. Act.entryRelationship:entryRelationship1.observation.code.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
164. Act.entryRelationship:entryRelationship1.observation.code.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This code SHALL contain exactly one [1..1] @code="ASSERTION" assertion (CONF:1098-31619).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Pattern ValueASSERTION
166. Act.entryRelationship:entryRelationship1.observation.code.codeSystem
Definition

Specifies the code system that defines the code.

Comments

This code SHALL contain exactly one [1..1] @codeSystem="2.16.840.1.113883.5.4 " (CodeSystem: HL7ActCode urn:oid:2.16.840.1.113883.5.4) (CONF:1098-31620).

Control1..1
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
Pattern Value2.16.840.1.113883.5.4
168. Act.entryRelationship:entryRelationship1.observation.code.codeSystemName
Definition

The common name of the coding system.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Name
170. Act.entryRelationship:entryRelationship1.observation.code.codeSystemVersion
Definition

If applicable, a version descriptor defined specifically for the given code system.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Version
172. Act.entryRelationship:entryRelationship1.observation.code.displayName
Definition

A name or title for the code, under which the sending system shows the code value to its users.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplay Name
174. Act.entryRelationship:entryRelationship1.observation.code.sdtcValueSet
Definition

The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.

Control0..1
Typestring(oid: ISO Object Identifier)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSet.
176. Act.entryRelationship:entryRelationship1.observation.code.sdtcValueSetVersion
Definition

The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSetVersion.
178. Act.entryRelationship:entryRelationship1.observation.code.originalText
Definition

The text or phrase used as the basis for the coding.

Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
LabelOriginal Text
180. Act.entryRelationship:entryRelationship1.observation.code.qualifier
Definition

Specifies additional codes that increase the specificity of the the primary code.

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CR
LabelQualifier
182. Act.entryRelationship:entryRelationship1.observation.code.translation
Definition

A set of other concept descriptors that translate this concept descriptor into other code systems.

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
LabelTranslation
184. Act.entryRelationship:entryRelationship1.observation.derivationExpr
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ST
186. Act.entryRelationship:entryRelationship1.observation.text
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
XML FormatThe type of this property is determined using the xsi:typeattribute.
188. Act.entryRelationship:entryRelationship1.observation.statusCode
Comments

This observation SHALL contain exactly one [1..1] statusCode (CONF:1098-31614).

Control1..1
BindingThe codes SHALL be taken from ActStatus
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
190. Act.entryRelationship:entryRelationship1.observation.statusCode.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
192. Act.entryRelationship:entryRelationship1.observation.statusCode.code
Definition

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

Comments

This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14) (CONF:1098-31615).

Control1..1
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode
Fixed Valuecompleted
194. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystem
Definition

Specifies the code system that defines the code.

Control0..0
Typestring(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System
196. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystemName
Definition

The common name of the coding system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Name
198. Act.entryRelationship:entryRelationship1.observation.statusCode.codeSystemVersion
Definition

If applicable, a version descriptor defined specifically for the given code system.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelCode System Version
200. Act.entryRelationship:entryRelationship1.observation.statusCode.displayName
Definition

A name or title for the code, under which the sending system shows the code value to its users.

Control0..0
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelDisplay Name
202. Act.entryRelationship:entryRelationship1.observation.statusCode.sdtcValueSet
Definition

The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.

Control0..1
Typestring(oid: ISO Object Identifier)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSet.
204. Act.entryRelationship:entryRelationship1.observation.statusCode.sdtcValueSetVersion
Definition

The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.

Control0..1
Typestring(st: Character String)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.In the XML format, this property has the namespace urn:hl7-org:sdtc.In the XML format, this property has the actual namevalueSetVersion.
206. Act.entryRelationship:entryRelationship1.observation.statusCode.originalText
Definition

The text or phrase used as the basis for the coding.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ED
LabelOriginal Text
208. Act.entryRelationship:entryRelationship1.observation.statusCode.qualifier
Definition

Specifies additional codes that increase the specificity of the the primary code.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CR
LabelQualifier
210. Act.entryRelationship:entryRelationship1.observation.statusCode.translation
Definition

A set of other concept descriptors that translate this concept descriptor into other code systems.

Control0..0
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
LabelTranslation
212. Act.entryRelationship:entryRelationship1.observation.effectiveTime
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
214. Act.entryRelationship:entryRelationship1.observation.priorityCode
Comments

This observation SHOULD contain zero or one [0..1] priorityCode, which SHOULD be selected from ValueSet ActPriority urn:oid:2.16.840.1.113883.1.11.16866 DYNAMIC (CONF:1098-32443).

Control0..1
BindingThe codes SHOULD be taken from ActPriority
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
216. Act.entryRelationship:entryRelationship1.observation.repeatNumber
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/IVL-INT
218. Act.entryRelationship:entryRelationship1.observation.languageCode
Control0..1
BindingThe codes SHALL be taken from HumanLanguage
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
220. Act.entryRelationship:entryRelationship1.observation.value
Comments

This observation SHALL contain exactly one [1..1] value with @xsi:type="CD", where the code SHOULD be selected from ValueSet Care Model urn:oid:2.16.840.1.113883.11.20.9.61 DYNAMIC (CONF:1098-31611).

Control1..1
BindingThe codes SHOULD be taken from Care Model
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
XML FormatThe type of this property is determined using the xsi:typeattribute.
222. Act.entryRelationship:entryRelationship1.observation.interpretationCode
Control0..*
BindingThe codes SHALL be taken from ObservationInterpretation
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
224. Act.entryRelationship:entryRelationship1.observation.methodCode
Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationMethod
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CE
226. Act.entryRelationship:entryRelationship1.observation.targetSiteCode
Definition

Drawn from concept domain ActSite

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CD
228. Act.entryRelationship:entryRelationship1.observation.subject
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Subject
230. Act.entryRelationship:entryRelationship1.observation.specimen
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Specimen
232. Act.entryRelationship:entryRelationship1.observation.performer
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Performer2
234. Act.entryRelationship:entryRelationship1.observation.author
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Author
236. Act.entryRelationship:entryRelationship1.observation.informant
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Informant
238. Act.entryRelationship:entryRelationship1.observation.participant
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Participant2
240. Act.entryRelationship:entryRelationship1.observation.entryRelationship
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
242. Act.entryRelationship:entryRelationship1.observation.reference
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Reference
244. Act.entryRelationship:entryRelationship1.observation.precondition
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Precondition
246. Act.entryRelationship:entryRelationship1.observation.referenceRange
Definition

Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified.

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
248. Act.entryRelationship:entryRelationship1.observation.referenceRange.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
250. Act.entryRelationship:entryRelationship1.observation.referenceRange.realmCode
Definition

When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
252. Act.entryRelationship:entryRelationship1.observation.referenceRange.typeId
Definition

When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.

Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
254. Act.entryRelationship:entryRelationship1.observation.referenceRange.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
256. Act.entryRelationship:entryRelationship1.observation.referenceRange.typeCode
Control0..1
BindingThe codes SHALL be taken from ActRelationshipPertains
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueREFV
258. Act.entryRelationship:entryRelationship1.observation.referenceRange.observationRange
Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ObservationRange
260. Act.entryRelationship:entryRelationship1.observationMedia
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ObservationMedia
262. Act.entryRelationship:entryRelationship1.organizer
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Organizer
264. Act.entryRelationship:entryRelationship1.procedure
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Procedure
266. Act.entryRelationship:entryRelationship1.regionOfInterest
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/RegionOfInterest
268. Act.entryRelationship:entryRelationship1.substanceAdministration
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/SubstanceAdministration
270. Act.entryRelationship:entryRelationship1.supply
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Supply
272. Act.entryRelationship:indication
Slice Nameindication
Comments

MAY contain zero or more [0..*] entryRelationship (CONF:1098-31635) such that it

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
274. Act.entryRelationship:indication.nullFlavor
Definition

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

Control0..1
BindingThe codes SHALL be taken from NullFlavor
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
LabelExceptional Value Detail
276. Act.entryRelationship:indication.realmCode
Definition

When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/CS
278. Act.entryRelationship:indication.typeId
Definition

When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.

Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
280. Act.entryRelationship:indication.templateId
Definition

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/II
282. Act.entryRelationship:indication.typeCode
Comments

SHALL contain exactly one [1..1] @typeCode="RSON" has reason (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002) (CONF:1098-31636).

Control1..1
BindingThe codes SHALL be taken from x_ActRelationshipEntryRelationship
Typecode(cs: Coded Simple Value)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Fixed ValueRSON
284. Act.entryRelationship:indication.inversionInd
Definition

The entryRelationship.inversionInd can be set to "true" to indicate that the relationship should be interpreted as if the roles of the source and target entries were reversed.

Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
286. Act.entryRelationship:indication.contextConductionInd
Definition

The entryRelationship.contextConductionInd differs from the otherwise common use of this attribute in that in all other cases where this attribute is used, the value is fixed at "true", whereas here the value is defaulted to "true", and can be changed to "false" when referencing an entry in the same document. Setting the context conduction to false when referencing an entry in the same document keeps clear the fact that the referenced object retains its original context.

Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
Default Valuetrue
288. Act.entryRelationship:indication.negationInd
Control0..1
Typeboolean(bl: Boolean)
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
XML FormatIn the XML format, this property is represented as an attribute.
290. Act.entryRelationship:indication.sequenceNumber
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/INT
292. Act.entryRelationship:indication.seperatableInd
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/BL
294. Act.entryRelationship:indication.act
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Act
296. Act.entryRelationship:indication.encounter
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Encounter
298. Act.entryRelationship:indication.observation
Definition

Base definition for all types defined in FHIR type system.

ShortBase for all types and resources
Comments

SHALL contain exactly one [1..1] Indication (identifier: urn:hl7ii:2.16.840.1.113883.10.20.22.4.19:2014-06-09) (CONF:1098-32634).

Control1..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Observation(Indication)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
300. Act.entryRelationship:indication.observationMedia
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/ObservationMedia
302. Act.entryRelationship:indication.organizer
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Organizer
304. Act.entryRelationship:indication.procedure
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Procedure
306. Act.entryRelationship:indication.regionOfInterest
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/RegionOfInterest
308. Act.entryRelationship:indication.substanceAdministration
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/SubstanceAdministration
310. Act.entryRelationship:indication.supply
Control0..1
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Supply
312. Act.reference
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Reference
314. Act.precondition
Control0..*
Typehttp://hl7.org/cda/stds/core/StructureDefinition/Precondition