NPHCDA Immunization FHIR IG
0.7.0 - ci-build
NPHCDA Immunization FHIR IG
0.7.0 - ci-build
NPHCDA Immunization FHIR IG, published by https://nphcda.gov.ng. This guide is not an authorized publication; it is the continuous build for version 0.7.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Nigeria-FHIR-Community/NPHCDA-ImmunizationIG/ and changes regularly. See the Directory of published versions
| Official URL: http://nphcda.gov.ng/ig/immunization/StructureDefinition/ng-encounter-signature | Version: 0.7.0 | |||
| Draft as of 2025-09-26 | Computable Name: NGSignature | |||
A digital or electronic signature capturing who signed, when, type, and signature data. Extension to capture the practitioner’s digital signature on an Encounter resource.
Context of Use
This extension may be used on the following element(s):
Usage info
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
0..* | Extension | NG-Imm Encounter Signature | |
  extension |
0..0 | |||
| url |
1..1 | uri | "http://nphcda.gov.ng/ig/immunization/StructureDefinition/ng-encounter-signature" | |
  value[x] |
S | 1..1 | Signature | Value of extension |
 when |
S | 1..1 | instant | When the signature was created |
 who |
S | 1..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | Who signed |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | NG-Imm Encounter Signature | |
 id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | |||
| url |
1..1 | uri | "http://nphcda.gov.ng/ig/immunization/StructureDefinition/ng-encounter-signature" | |
| value[x] |
S | 1..1 | Signature | Value of extension |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| type |
Σ | 1..* | Coding | Indication of the reason the entity signed the object(s) Binding: SignatureTypeCodes (preferred): An indication of the reason that an entity signed the object. |
| when |
SΣ | 1..1 | instant | When the signature was created |
 who |
SΣ | 1..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | Who signed |
| onBehalfOf |
Σ | 0..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | The party represented |
| targetFormat |
0..1 | code | The technical format of the signed resources Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed. | |
| sigFormat |
0..1 | code | The technical format of the signature Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed. | |
| data |
0..1 | base64Binary | The actual signature content (XML DigSig. JWS, picture, etc.) | |
| Documentation for this format | ||||
This structure is derived from Extension
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | NG-Imm Encounter Signature | |
| extension |
0..0 | |||
| url |
1..1 | uri | "http://nphcda.gov.ng/ig/immunization/StructureDefinition/ng-encounter-signature" | |
| value[x] |
S | 1..1 | Signature | Value of extension |
| when |
S | 1..1 | instant | When the signature was created |
| who |
S | 1..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | Who signed |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | NG-Imm Encounter Signature | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | |||
| url |
1..1 | uri | "http://nphcda.gov.ng/ig/immunization/StructureDefinition/ng-encounter-signature" | |
| value[x] |
S | 1..1 | Signature | Value of extension |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| type |
Σ | 1..* | Coding | Indication of the reason the entity signed the object(s) Binding: SignatureTypeCodes (preferred): An indication of the reason that an entity signed the object. |
| when |
SΣ | 1..1 | instant | When the signature was created |
| who |
SΣ | 1..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | Who signed |
| onBehalfOf |
Σ | 0..1 | Reference(Practitioner | PractitionerRole | RelatedPerson | Patient | Device | Organization) | The party represented |
| targetFormat |
0..1 | code | The technical format of the signed resources Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed. | |
| sigFormat |
0..1 | code | The technical format of the signature Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed. | |
| data |
0..1 | base64Binary | The actual signature content (XML DigSig. JWS, picture, etc.) | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
| Path | Conformance | ValueSet | URI |
| Extension.value[x].type | preferred | SignatureTypeCodeshttp://hl7.org/fhir/ValueSet/signature-type|4.0.1From the FHIR Standard | |
| Extension.value[x].targetFormat | required | Mime Types(a valid code from urn:ietf:bcp:13)http://hl7.org/fhir/ValueSet/mimetypes|4.0.1From the FHIR Standard | |
| Extension.value[x].sigFormat | required | Mime Types(a valid code from urn:ietf:bcp:13)http://hl7.org/fhir/ValueSet/mimetypes|4.0.1From the FHIR Standard |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |