This page is part of the CCDA: Consolidated CDA Release (v4.0.0: CCDA 4.0) generated with FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions
Official URL: http://hl7.org/cda/us/ccda/StructureDefinition/CommentActivity | Version: 4.0.0 | |||
Draft as of 2025-06-20 | Computable Name: CommentActivity | |||
Other Identifiers: OID:2.16.840.1.113883.10.20.22.4.64 |
Comments are free text data that cannot otherwise be recorded using data elements already defined by this specification. They are not to be used to record information that can be recorded elsewhere. For example, a free text description of the severity of an allergic reaction would not be recorded in a comment.
Usages:
Changes since version 3.0.0:
Description of Template, Differentials, Snapshots and how the different presentations work.
This structure is derived from Act
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
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C | 1..1 | Act | XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId, @classCode, @moodCode, @negationInd, id, code, text, statusCode, effectiveTime, priorityCode, languageCode, subject, specimen, performer, author, informant, participant, entryRelationship, reference, precondition, sdtcPrecondition2, sdtcInFulfillmentOf1 Base for all types and resources Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class) Constraints: should-text-ref-value, should-author |
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1..* | II | Slice: Unordered, Open by value:root | |
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1..1 | II | ||
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1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.10.20.22.4.64 | |
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0..0 | |||
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1..1 | cs | Fixed Value: ACT | |
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1..1 | cs | Fixed Value: EVN | |
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1..1 | CD | ||
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1..1 | cs | Required Pattern: 48767-8 | |
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1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.6.1 | |
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1..1 | ED | SHOULD reference the portion of section narrative text corresponding to this entry | |
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C | 1..1 | TEL | Constraints: value-starts-octothorpe |
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1..1 | url | ||
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0..1 | AuthorParticipation | ||
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Id | Grade | Path(s) | Details | Requirements |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |
Path | Conformance | ValueSet / Code | URI |
Act.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.typeId.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.templateId:comment-activity.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.classCode | required | Fixed Value: ACThttp://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryAct|2.0.0 | |
Act.moodCode | required | Fixed Value: EVNhttp://terminology.hl7.org/ValueSet/v3-xDocumentActMood|2.0.0 | |
Act.code | example | ActCodehttp://terminology.hl7.org/ValueSet/v3-ActCode | |
Act.code.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.compression | required | CDACompressionAlgorithmhttp://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm | |
Act.text.integrityCheckAlgorithm | required | IntegrityCheckAlgorithmhttp://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 | |
Act.text.mediaType | example | MediaTypehttp://terminology.hl7.org/ValueSet/v3-MediaType | |
Act.text.representation | required | BinaryDataEncodinghttp://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding | |
Act.text.reference.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.reference.use | required | TelecommunicationAddressUsehttp://terminology.hl7.org/ValueSet/v3-TelecommunicationAddressUse|2.0.0 | |
Act.statusCode | required | ActStatushttp://terminology.hl7.org/ValueSet/v3-ActStatus | |
Act.priorityCode | example | ActPriorityhttp://terminology.hl7.org/ValueSet/v3-ActPriority | |
Act.languageCode | required | AllLanguageshttp://hl7.org/fhir/ValueSet/all-languages From the FHIR Standard |
Id | Grade | Path(s) | Details | Requirements |
II-1 | error | Act.typeId | An II instance must have either a root or an nullFlavor. : root.exists() or nullFlavor.exists() | |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |
Path | Conformance | ValueSet / Code | URI |
Act.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.typeId.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.templateId:comment-activity.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.classCode | required | Fixed Value: ACThttp://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryAct|2.0.0 | |
Act.moodCode | required | Fixed Value: EVNhttp://terminology.hl7.org/ValueSet/v3-xDocumentActMood|2.0.0 | |
Act.code | example | ActCodehttp://terminology.hl7.org/ValueSet/v3-ActCode | |
Act.code.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.compression | required | CDACompressionAlgorithmhttp://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm | |
Act.text.integrityCheckAlgorithm | required | IntegrityCheckAlgorithmhttp://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 | |
Act.text.mediaType | example | MediaTypehttp://terminology.hl7.org/ValueSet/v3-MediaType | |
Act.text.representation | required | BinaryDataEncodinghttp://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding | |
Act.text.reference.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.reference.use | required | TelecommunicationAddressUsehttp://terminology.hl7.org/ValueSet/v3-TelecommunicationAddressUse|2.0.0 | |
Act.statusCode | required | ActStatushttp://terminology.hl7.org/ValueSet/v3-ActStatus | |
Act.priorityCode | example | ActPriorityhttp://terminology.hl7.org/ValueSet/v3-ActPriority | |
Act.languageCode | required | AllLanguageshttp://hl7.org/fhir/ValueSet/all-languages From the FHIR Standard |
Id | Grade | Path(s) | Details | Requirements |
II-1 | error | Act.typeId | An II instance must have either a root or an nullFlavor. : root.exists() or nullFlavor.exists() | |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |
Differential View
This structure is derived from Act
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
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C | 1..1 | Act | XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId, @classCode, @moodCode, @negationInd, id, code, text, statusCode, effectiveTime, priorityCode, languageCode, subject, specimen, performer, author, informant, participant, entryRelationship, reference, precondition, sdtcPrecondition2, sdtcInFulfillmentOf1 Base for all types and resources Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class) Constraints: should-text-ref-value, should-author |
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1..* | II | Slice: Unordered, Open by value:root | |
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1..1 | II | ||
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1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.10.20.22.4.64 | |
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0..0 | |||
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1..1 | cs | Fixed Value: ACT | |
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1..1 | cs | Fixed Value: EVN | |
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1..1 | CD | ||
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1..1 | cs | Required Pattern: 48767-8 | |
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1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.6.1 | |
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1..1 | ED | SHOULD reference the portion of section narrative text corresponding to this entry | |
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C | 1..1 | TEL | Constraints: value-starts-octothorpe |
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1..1 | url | ||
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0..1 | AuthorParticipation | ||
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Id | Grade | Path(s) | Details | Requirements |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |
Key Elements View
Path | Conformance | ValueSet / Code | URI |
Act.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.typeId.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.templateId:comment-activity.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.classCode | required | Fixed Value: ACThttp://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryAct|2.0.0 | |
Act.moodCode | required | Fixed Value: EVNhttp://terminology.hl7.org/ValueSet/v3-xDocumentActMood|2.0.0 | |
Act.code | example | ActCodehttp://terminology.hl7.org/ValueSet/v3-ActCode | |
Act.code.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.compression | required | CDACompressionAlgorithmhttp://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm | |
Act.text.integrityCheckAlgorithm | required | IntegrityCheckAlgorithmhttp://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 | |
Act.text.mediaType | example | MediaTypehttp://terminology.hl7.org/ValueSet/v3-MediaType | |
Act.text.representation | required | BinaryDataEncodinghttp://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding | |
Act.text.reference.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.reference.use | required | TelecommunicationAddressUsehttp://terminology.hl7.org/ValueSet/v3-TelecommunicationAddressUse|2.0.0 | |
Act.statusCode | required | ActStatushttp://terminology.hl7.org/ValueSet/v3-ActStatus | |
Act.priorityCode | example | ActPriorityhttp://terminology.hl7.org/ValueSet/v3-ActPriority | |
Act.languageCode | required | AllLanguageshttp://hl7.org/fhir/ValueSet/all-languages From the FHIR Standard |
Id | Grade | Path(s) | Details | Requirements |
II-1 | error | Act.typeId | An II instance must have either a root or an nullFlavor. : root.exists() or nullFlavor.exists() | |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |
Snapshot View
Path | Conformance | ValueSet / Code | URI |
Act.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.typeId.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.templateId:comment-activity.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.classCode | required | Fixed Value: ACThttp://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryAct|2.0.0 | |
Act.moodCode | required | Fixed Value: EVNhttp://terminology.hl7.org/ValueSet/v3-xDocumentActMood|2.0.0 | |
Act.code | example | ActCodehttp://terminology.hl7.org/ValueSet/v3-ActCode | |
Act.code.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.compression | required | CDACompressionAlgorithmhttp://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm | |
Act.text.integrityCheckAlgorithm | required | IntegrityCheckAlgorithmhttp://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 | |
Act.text.mediaType | example | MediaTypehttp://terminology.hl7.org/ValueSet/v3-MediaType | |
Act.text.representation | required | BinaryDataEncodinghttp://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding | |
Act.text.reference.nullFlavor | required | CDANullFlavorhttp://hl7.org/cda/stds/core/ValueSet/CDANullFlavor | |
Act.text.reference.use | required | TelecommunicationAddressUsehttp://terminology.hl7.org/ValueSet/v3-TelecommunicationAddressUse|2.0.0 | |
Act.statusCode | required | ActStatushttp://terminology.hl7.org/ValueSet/v3-ActStatus | |
Act.priorityCode | example | ActPriorityhttp://terminology.hl7.org/ValueSet/v3-ActPriority | |
Act.languageCode | required | AllLanguageshttp://hl7.org/fhir/ValueSet/all-languages From the FHIR Standard |
Id | Grade | Path(s) | Details | Requirements |
II-1 | error | Act.typeId | An II instance must have either a root or an nullFlavor. : root.exists() or nullFlavor.exists() | |
should-author | warning | Act | SHOULD contain author : author.exists() | |
should-text-ref-value | warning | Act | SHOULD contain text/reference/@value : text.reference.value.exists() | |
value-starts-octothorpe | error | Act.text.reference | If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative : value.exists() implies value.startsWith('#') |