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/DDCCCoreDataSetVSCoC | Version: 1.0.0 | |||
| Draft as of 2025-03-10 | Computable Name: DDCCCoreDataSetVSCoC | |||
Data elements for the DDCC Core Data Set - Vaccination Status - Continuity of Care.
Usage:
Description of Profiles, Differentials, Snapshots and how the different presentations work.
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  DDCCCoreDataSet |
0..* | DDCCCoreDataSetVS | Elements defined in Ancestors:name, birthDate, identifier, certificate, vaccination DDCC Core Data Set Logical Model - Vaccination Status - Continuity of Care | |
  name |
Σ | 1..1 | string | Name |
| birthDate |
Σ | 0..1 | date | Date of birth |
 identifier |
Σ | 0..1 | Identifier | Unique identifier |
 certificate |
Σ | 0..1 | BackboneElement | Certificate Metadata 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 |
 issuer |
Σ | 1..1 | Reference(DDCC Organization) | Certificate issuer |
| kid |
0..1 | string | Key ID used to verify the signature of the certificate | |
| hcid |
Σ | 1..1 | Identifier | Health certificate identifier (HCID) |
| ddccid |
Σ | 0..1 | Identifier | DDCC Identifier |
| version |
Σ | 1..1 | string | Certificate schema version |
 period |
C | 0..1 | Period | Certificate Validity Period ele-1: All FHIR elements must have a @value or children per-1: If present, start SHALL have a lower value than end |
 @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 | |
| start |
ΣC | 0..1 | dateTime | Certificate valid from ele-1: All FHIR elements must have a @value or children |
 end |
ΣC | 0..1 | dateTime | Certificate valid until ele-1: All FHIR elements must have a @value or children |
| vaccination |
ΣC | 1..1 | BackboneElement | Vaccination Event who-ddcc-data-1: Manufacturer or Market Authorization Holder SHALL be present 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 |
| vaccine |
Σ | 1..1 | Coding | Vaccine or prophylaxis Binding: WHO Vaccine List (COVID-19) (preferred) |
| brand |
Σ | 1..1 | Coding | Vaccine brand |
| manufacturer |
Σ | 0..1 | Coding | Vaccine manufacturer |
| maholder |
Σ | 0..1 | Coding | Vaccine market authorization holder |
| lot |
Σ | 1..1 | string | Vaccine lot number |
| date |
Σ | 1..1 | dateTime | Date of vaccination |
| validFrom |
0..1 | date | Vaccination valid from | |
| dose |
Σ | 1..1 | positiveInt | Dose number |
| totalDoses |
0..1 | positiveInt | Total doses | |
| country |
Σ | 1..1 | Coding | Country of vaccination Binding: Iso3166-1-3 (preferred) |
| centre |
1..1 | string | Administering centre | |
| signature |
0..1 | Signature | Signature of health worker | |
| practitioner |
0..1 | Identifier | Health worker identifier | |
| disease |
0..1 | Coding | Disease or agent targeted Binding: WHO Disease or Agent Targeted (COVID-19) (preferred) | |
| nextDose |
0..1 | date | Due date of next dose | |
| sex |
Σ | 0..1 | code | Sex Binding: AdministrativeGender (required) |
| Documentation for this format | ||||
| Path | Conformance | ValueSet | URI |
| DDCCCoreDataSet.vaccination.vaccine | preferred | WHODDCCVaccinesCOVID19http://smart.who.int/ddcc/ValueSet/WHODDCCVaccinesCOVID19from this IG | |
| DDCCCoreDataSet.vaccination.country | preferred | Iso3166-1-3http://hl7.org/fhir/ValueSet/iso3166-1-3from the FHIR Standard | |
| DDCCCoreDataSet.vaccination.disease | preferred | WHODDCCDiseaseTargetedCOVID19http://smart.who.int/ddcc/ValueSet/WHODDCCDiseaseTargetedCOVID19from this IG | |
| DDCCCoreDataSet.sex | required | AdministrativeGenderhttp://hl7.org/fhir/ValueSet/administrative-genderfrom 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() | |
| per-1 | error | DDCCCoreDataSet.certificate.period | If present, start SHALL have a lower value than end : start.hasValue().not() or end.hasValue().not() or (start <= end) | |
| who-ddcc-data-1 | error | DDCCCoreDataSet.vaccination | Manufacturer or Market Authorization Holder SHALL be present : manufacturer.exists() or maholder.exists() |