Clinical Document Architecture - Local Development build (v2.0.1-sd-202510-matchbox-patch) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
| Official URL: http://hl7.org/cda/stds/core/StructureDefinition/ExternalAct | Version: 2.0.1-sd-202510-matchbox-patch | |||
| Active as of 2025-10-29 | Computable Name: ExternalAct | |||
ExternalAct is a derivative of the RIM Act class, to be used when the other more specific classes are not appropriate.
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Template, Differentials, Snapshots and how the different presentations work.
This structure is derived from InfrastructureRoot
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..* | CS | ||
![]() ![]()  | 
C | 0..1 | II | Constraints: II-1 | 
![]() ![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]() ![]()  | 
0..1 | st | ||
![]() ![]() ![]()  | 
0..1 | bl | ||
![]() ![]() ![]()  | 
1..1 | oid, uuid, ruid | Fixed Value: 2.16.840.1.113883.1.3 | |
![]() ![]() ![]()  | 
1..1 | st | ||
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
| Id | Grade | Path(s) | Description | Expression | 
| II-1 | error | ExternalAct.typeId | An II instance must have either a root or an nullFlavor. | 
      root.exists() or nullFlavor.exists()
     | 
  
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..* | CS | ||
![]() ![]()  | 
C | 0..1 | II | Constraints: II-1 | 
![]() ![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]() ![]()  | 
0..1 | st | ||
![]() ![]() ![]()  | 
0..1 | bl | ||
![]() ![]() ![]()  | 
1..1 | oid, uuid, ruid | Fixed Value: 2.16.840.1.113883.1.3 | |
![]() ![]() ![]()  | 
1..1 | st | ||
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
| Id | Grade | Path(s) | Description | Expression | 
| II-1 | error | ExternalAct.typeId | An II instance must have either a root or an nullFlavor. | 
      root.exists() or nullFlavor.exists()
     | 
  
This structure is derived from InfrastructureRoot
Differential View
This structure is derived from InfrastructureRoot
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..* | CS | ||
![]() ![]()  | 
C | 0..1 | II | Constraints: II-1 | 
![]() ![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]() ![]()  | 
0..1 | st | ||
![]() ![]() ![]()  | 
0..1 | bl | ||
![]() ![]() ![]()  | 
1..1 | oid, uuid, ruid | Fixed Value: 2.16.840.1.113883.1.3 | |
![]() ![]() ![]()  | 
1..1 | st | ||
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
| Id | Grade | Path(s) | Description | Expression | 
| II-1 | error | ExternalAct.typeId | An II instance must have either a root or an nullFlavor. | 
      root.exists() or nullFlavor.exists()
     | 
  
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
1..1 | InfrastructureRoot | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor, realmCode, typeId, templateId Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class)  | |
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..* | CS | ||
![]() ![]()  | 
C | 0..1 | II | Constraints: II-1 | 
![]() ![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]() ![]()  | 
0..1 | st | ||
![]() ![]() ![]()  | 
0..1 | bl | ||
![]() ![]() ![]()  | 
1..1 | oid, uuid, ruid | Fixed Value: 2.16.840.1.113883.1.3 | |
![]() ![]() ![]()  | 
1..1 | st | ||
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | cs | Binding: CDAActClass (required) | |
![]() ![]()  | 
0..1 | cs | Binding: CDAActMood (required) Fixed Value: EVN  | |
![]() ![]()  | 
0..* | II | ||
![]() ![]()  | 
0..1 | CD | Binding: v3 Code System ActCode (example) | |
![]() ![]()  | 
0..1 | ED | ||
![]() ![]()  | 
0..* | Author | XML Namespace: urn:hl7-org:sdtc XML: author (urn:hl7-org:sdtc)  | |
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| ExternalAct.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.classCode | Base | required | CDAActClass | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.moodCode | Base | required | CDAActMood | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| ExternalAct.code | Base | example | v3 Code System ActCode | 📦2.0.0 | THO v5.3 | 
| Id | Grade | Path(s) | Description | Expression | 
| II-1 | error | ExternalAct.typeId | An II instance must have either a root or an nullFlavor. | 
      root.exists() or nullFlavor.exists()
     | 
  
This structure is derived from InfrastructureRoot