WHO Digital Documentation of COVID-19 Certificates (DDCC)
1.0.0 - CI Build
WHO Digital Documentation of COVID-19 Certificates (DDCC)
1.0.0 - CI Build
WHO Digital Documentation of COVID-19 Certificates (DDCC), published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/ddcc/tree/main and changes regularly. See the Directory of published versions
| Official URL: http://smart.who.int/ddcc/StructureDefinition/CertSHC | Version: 1.0.0 | |||
| Draft as of 2025-03-10 | Computable Name: CertSHC | |||
Data elements for the Smart Health Cards Core Data Set.
Usage:
Description of Profiles, Differentials, Snapshots and how the different presentations work.
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
  iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
  vc |
0..1 | BackboneElement | VC - verifiable credential ele-1: All FHIR elements must have a @value or children | |
 @id |
0..1 | string | Unique id for inter-element referencing | |
 extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both | |
 modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject ele-1: All FHIR elements must have a @value or children | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both |
| fhirVersion |
0..1 | string | Fhir Version | |
  fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
| 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() |
This structure is derived from Base
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
| iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
| vc |
0..1 | BackboneElement | VC - verifiable credential | |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject | |
| fhirVersion |
0..1 | string | Fhir Version | |
| fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
| iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
| vc |
0..1 | BackboneElement | VC - verifiable credential | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| fhirVersion |
0..1 | string | Fhir Version | |
| fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
| 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() |
This structure is derived from Base
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
| iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
| vc |
0..1 | BackboneElement | VC - verifiable credential ele-1: All FHIR elements must have a @value or children | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject ele-1: All FHIR elements must have a @value or children | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both |
| fhirVersion |
0..1 | string | Fhir Version | |
| fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
| 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() |
Differential View
This structure is derived from Base
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
| iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
| vc |
0..1 | BackboneElement | VC - verifiable credential | |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject | |
| fhirVersion |
0..1 | string | Fhir Version | |
| fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| CertSHC |
0..* | Base | This is an abstract type. Certificate - Smart Health Card's JSon Web Token Logical Model | |
| iss |
0..1 | string | Issuer | |
| sub |
0..1 | string | Subject | |
| aud |
0..1 | string | Audience | |
| exp |
0..1 | decimal | Expiration Date | |
| nbf |
0..1 | decimal | Not before Date | |
| iat |
0..1 | decimal | Issued at Date | |
| jti |
0..1 | string | Credential's Unique Identifier | |
| vc |
0..1 | BackboneElement | VC - verifiable credential | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| type |
0..* | string | Credential Type | |
| credentialSubject |
0..1 | BackboneElement | Credential Subject | |
| @id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
| fhirVersion |
0..1 | string | Fhir Version | |
| fhirBundle |
0..1 | Bundle | Fhir Bundle with the signed objects | |
| Documentation for this format | ||||
| 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() |
This structure is derived from Base