Dictionary

This page is part of the WHO Digital Documentation of COVID-19 Certificates (DDCC) (v1.0.0: releases Draft) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Contents:

Logical Models
DDCC:VS Core Data Set
DDCC:TR Core Data Set

The recommended core data set in the WHO Digital Documentation of COVID-19 Certificates guidance is intended to include the critical data required for interoperability, specific to the scenarios of use defined and driven by the public health needs. A published version of the data dictionary is available in spreadsheet format in Web Annex A of the DDCC:Vaccination Status guidance and in an annex to the DDCC:Test Result guidance.

Logical Models

DDCC:Vaccination Status: Continuity of Care Core Data Set
DDCC:Vaccination Status: Proof of Vaccination Core Data Set
DDCC:Test Result Core Data Set, which includes Proof of Negative SARS-CoV-2 Test Result and Proof of Previous SARS-CoV-2 Infection.

DDCC:VS Core Data Set

The following table is an abbreviated copy of the DDCC:VS:Web Annex A, the published version of the DDCC:VS Core data dictionary with the following differences:

Date formats are updated to be compatible with FHIR (this means that dashes are required, e.g., YYYY-MM-DD, not YYYYMMDD),
Only SNOMED GPS mappings are included (columns SNOMED CT International was removed, but values are the same as SNOMED GPS)
It will include mappings to the HL7 FHIR elements used on the StructureDefinitions for the core data set. (forthcoming)
ICD-11 Comments/Considerations for vaccines refer back to source content and a related note for readability.

Section

Requirement status for
Continuity of Care

Requirement status for
Proof of Vaccination

Data Element Label

Description and Definition

Data Type

Preferred Code System

Quantity Sub-Type

Multiple-Choice Type
(if applicable)

Input Options

Validation Condition

Notes

ICD-11
Code

ICD-11
URI

ICD-11 Comments / Considerations

ICD-10
code

ICD-10
code title

SNOMED CT (GPS)
Concept ID

SNOMED CT (GPS)
Concept Description

ATC
code

ATC
code title

Header - input once

REQUIRED

Name

The full name of the vaccinated person.

String

N/A

ISO 10646 - UTF-8 is recommended

N/A

Header - input once

REQUIRED

Date of birth

The vaccinated person's date of birth (DOB) if known. If unknown, use assigned DOB for administrative purposes.

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

N/A

Header - input once

OPTIONAL - RECOMMENDED

Unique identifier

Unique identifier for the vaccinated person, according to the policies applicable to each country. There can be more than one unique identifier used to link records (e.g. national ID, health ID, immunization information system ID, medical record ID).

N/A

This will NOT be restricted to globally accepted identifiers, and will be the responsibility of the Member State to determine how they want to utilize unique identifiers and related extensions.

N/A

Header - input once

OPTIONAL - RECOMMENDED

NOT NEEDED

Sex

Documentation of a specific instance of sex information for the vaccinated person.

Coding

As defined by Member State

N/A

Select one

N/A

It is recommended to collect sex. However, it will be up to the Member State to determine which code system to use.

N/A

Data needed for each vaccination event

REQUIRED

Vaccine or prophylaxis

Generic description of the vaccine or vaccine sub-type, e.g. COVID-19 mRNA vaccine, HPV vaccine.

Coding

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Select one

N/A

Vaccines

http://id.who.int/icd/
entity/164949870

There are no index terms associated with this entity

COVID-19 vaccine

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine

N/A

XM68M6

http://id.who.int/icd/
entity/894585096

Inclusion of any particular product or entity in any of these landscape documents does not constitute, and shall not be deemed or construed as, any approval or endorsement by WHO of such product or entity (or any of its businesses or activities).

not found

28531000087107

Vaccine product against Severe acute respiratory syndrome coronavirus 2 (medicinal product)

J07BXxx

COVID-19 vaccines

COVID-19 vaccine, inactivated virus

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, inactivated virus

N/A

XM1NL1

http://id.who.int/icd/
entity/1104808441

See note for COVID-19 vaccine: XM68M6. __________________

not found

1157024006

Vaccine product containing only inactivated whole Severe acute respiratory syndrome coronavirus 2 antigen (medicinal product)|

not found

COVID-19 vaccine, live attenuated virus

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, live attenuated virus

N/A

XM5DF6

http://id.who.int/icd/
entity/993066376

See note for COVID-19 vaccine: XM68M6.

not found

COVID-19 vaccine, non-replicating viral vector

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, non-replicating viral vector

N/A

XM9QW8

http://id.who.int/icd/
entity/264142908

See note for COVID-19 vaccine: XM68M6.

not found

29061000087103

Vaccine product containing only recombinant non-replicating viral vector encoding Severe acute respiratory syndrome coronavirus 2 spike protein (medicinal product)|

not found

COVID-19 vaccine, replicating viral vector

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, replicating viral vector

N/A

XM0CX4

http://id.who.int/icd/
entity/877986394

See note for COVID-19 vaccine: XM68M6.

not found

COVID-19 vaccine, virus protein subunit

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, virus protein subunit

N/A

XM5JC5

http://id.who.int/icd/
entity/1368305645

See note for COVID-19 vaccine: XM68M6.

not found

COVID-19 vaccine, virus-like particle (VLP)

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, virus-like particle (VLP)

N/A

XM1J92

http://id.who.int/icd/
entity/729916172

See note for COVID-19 vaccine: XM68M6.

not found

COVID-19 vaccine, DNA based

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, DNA based

N/A

XM6AT1

http://id.who.int/icd/
entity/1316179031

See note for COVID-19 vaccine: XM68M6.

not found

COVID-19 vaccine, RNA based

Codes

ICD-11 extension codes (http://id.who.int/icd/
entity/164949870)

N/A

Input Option

COVID-19 vaccine, RNA based

N/A

XM0GQ8

http://id.who.int/icd/
entity/873941688

See note for COVID-19 vaccine: XM68M6.

not found

1119349007

Vaccine product containing only Severe acute respiratory syndrome coronavirus 2 messenger ribonucleic acid (medicinal product)

not found

Data needed for each vaccination event

REQUIRED

Vaccine brand

The brand or trade name used to refer to the vaccine received.

Coding

As defined by Member State

N/A

This data element can be predetermined by a vaccine product registry. If vaccine registry is unavailable, we can capture this as a string.

N/A

Data needed for each vaccination event

REQUIRED - CONDITIONAL

Vaccine manufacturer

Name of the manufacturer of the vaccine received. e.g. Serum institute of India, AstraZeneca. If vaccine manufacturer is unknown, market authorization holder is REQUIRED.

Coding

As defined by Member State

N/A

This data element can be predetermined by a vaccine product registry. If vaccine registry is unavailable, we can capture this as a string.

N/A

Data needed for each vaccination event

REQUIRED - CONDITIONAL

Vaccine market authorization holder

Name of the market authorization holder of the vaccine received. If market authorization holder is unknown, vaccine manufacturer is REQUIRED.

Coding

As defined by Member State

N/A

This data element can be predetermined by a vaccine product registry. If vaccine registry is unavailable, we can capture this as a string.

N/A

Data needed for each vaccination event

REQUIRED

Vaccine batch number

Batch number or lot number of vaccine.

String

N/A

Data needed for each vaccination event

REQUIRED

Date of vaccination

Date in which the vaccine was provided.

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

N/A

Data needed for each vaccination event

REQUIRED

Dose number

Vaccine dose number.

Quantity

N/A

Integer Quantity

N/A

Must be greater than 0

N/A

Data needed for each vaccination event

OPTIONAL

Vaccination valid from

Date upon which provided vaccination is considered valid. This data should only be considered valid at the time of issuance, as guidance is likely to evolve with further scientific evidence. Any user of this data (Vaccinator, Verifier) should validate this date according to their national policy. In the case of repeated doses, the data field for a subsequent dose should override the data field for a predecessor dose.

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

This data should only be considered valid at the time of issuance, as guidance is likely to evolve with further scientific evidence. Any user of this data (Vaccinator, Verifier) should validate this date according to their national policy. In the case of repeated doses, the data field for a subsequent dose should override the data field for a predecessor dose.

N/A

Data needed for each vaccination event

OPTIONAL - RECOMMENDED

Total doses

Total expected doses as defined by Member State care plan and immunization programme policies.

Quantity

N/A

Integer Quantity

N/A

Must be greater than 0

This data element can also be predetermined by a vaccine product registry.

N/A

Data needed for each vaccination event

REQUIRED

Country of vaccination

The country in which the individual has been vaccinated.

Coding

ISO 3166-1 alpha-3 (or numeric)

N/A

Select one

N/A

ISO 3166-1 alpha-3 (or numeric)

N/A

Data needed for each vaccination event

REQUIRED

OPTIONAL - RECOMMENDED

Administering centre

The name or identifier of the vaccination facility responsible for providing the vaccination.

String

As defined by Member State

N/A

Data needed for each vaccination event

OPTIONAL - RECOMMENDED

REQUIRED - CONDITIONAL

Signature of health worker

REQUIRED for PAPER vaccination certificates that have been filled out with handwriting ONLY. A printed paper vaccine certificate does not require the handwritten signature of a health worker. The health worker who provided the vaccination or the supervising clinician's hand-written signature.

Signature

N/A

Data needed for each vaccination event

OPTIONAL - RECOMMENDED

Health worker identifier

OPTIONAL for DIGITAL and PAPER vaccination certificates. The unique identifier for the health worker as determined by the member state. There can be more than one unique identifier used. (e.g. system generated ID, health profession number, cryptographic signature, or any other form of health worker unique identifier). This can be used in lieu of a paper-based signature.

N/A

Data needed for each vaccination event

OPTIONAL - RECOMMENDED

Disease or agent targeted

Name of disease vaccinated to protect against (such as COVID-19).

Coding

ICD-11

N/A

Select all that apply

N/A

COVID-19

Codes

ICD-11

N/A

Input option

COVID-19

N/A

RA01

http://id.who.int/icd/
entity/1730556128

N/A

U07.1

COVID-19, not otherwise specified

840539006

Disease caused by Severe acute respiratory syndrome coronavirus 2 (disorder)

N/A

Data needed for each vaccination event

OPTIONAL - RECOMMENDED

NOT NEEDED

Due date of next dose

Date on which the next vaccination should be administered, if a next dose is required. ______________________________

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

N/A

Certificate metadata

REQUIRED

Certificate issuer

The authority or authorized organization that issued the vaccination certificate.

String

N/A

Certificate metadata

REQUIRED

Health Certificate Identifier (HCID)

Unique identifier used to associate the vaccination status represented in a paper vaccination card to its digital representation(s).

N/A

Data needed for each vaccination event

OPTIONAL

Certificate valid from

Date in which the certificate for a vaccination event became valid. No health or clinical inferences should be made from this date

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

N/A

Data needed for each vaccination event

OPTIONAL

Certificate valid until

Last date in which the certificate for a vaccination event is valid. No health or clinical inferences should be made from this date.

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

___________________________

N/A

N/A __________________

N/A

DDCC:TR Core Data Set

The following table is a copy of the published version of the DDCC:TR Core data dictionary with the following difference: this version will include mappings to the HL7 FHIR elements used (forthcoming).

Section

Requirement status for
Proof of Negative SARS-CoV-2 Test Result

Requirement status for
Proof of Previous SARS-CoV-2 Infection

Data Element Label

Description and Definition

Data Type

Preferred Code System

Quantity Sub-Type

Multiple-Choice Type
(if applicable)

Input Options

Validation Condition

Notes

ICD-11
Code

ICD-11
URI

ICD-11 Code Title

ICD-11 Comments / Considerations

SNOMED CT (GPS)
Concept ID

SNOMED CT (GPS)
Concept Description

ICHI
code

ICHI
code title

ICHI
URl

Header - input once

REQUIRED

Name

The full name of the tested person

String

N/A

ISO 10646 - UTF-8 is recommended

N/A

Header - input once

REQUIRED

Date of birth

The tested person's date of birth (DOB) if known. If unknown, use assigned DOB for administrative purposes.

Date

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date (e.g. YYYY-MM-DD)

N/A

Compatible with HL7 FHIR date https://www.hl7.org/fhir/
datatypes.html#date

N/A

Header - input once

OPTIONAL - RECOMMENDED

Unique identifier

Unique identifier for the tested person, according to the policies applicable to each country. There can be more than one unique identifier used to link records (e.g. national ID, health ID, medical record ID).

N/A

This will NOT be restricted to globally accepted identifiers, and will be the responsibility of the Member State to determine how they want to utilize unique identifiers and related extensions.

N/A

Data needed for each SARS-CoV-2 test event

REQUIRED

Pathogen targeted

Name of the agent being targeted for (such as SARS-CoV-2)

Coding

ICD-11

N/A

Select one

N/A

There are no index terms associated with this entity

410607006

Organism

N/A

SARS-CoV-2

Codes

ICD-11

N/A

Input option

SARS-CoV-2

N/A

XN109

http://id.who.int/icd/
entity/243015485

SARS-CoV-2

840533007

Severe acute respiratory syndrome coronavirus 2 (organism)

not found

SARS-CoV-2 Alpha

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Alpha

N/A

XN0HL

http://id.who.int/icd/
entity/932811678

SARS-CoV-2 Alpha

not found

SARS-CoV-2 Beta

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Beta

N/A

XN4Q7

http://id.who.int/icd/
entity/2101382247

SARS-CoV-2 Beta

not found

SARS-CoV-2 Gamma

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Gamma

N/A

XN5BQ

http://id.who.int/icd/
entity/1822694497

SARS-CoV-2 Gamma

not found

SARS-CoV-2 Delta

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Delta

N/A

XN8V6

http://id.who.int/icd/
entity/867842560

SARS-CoV-2 Delta

not found

SARS-CoV-2 Epsilon

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Epsilon

N/A

XN1GK

http://id.who.int/icd/
entity/1503287239

SARS-CoV-2 Epsilon

not found

SARS-CoV-2 Zeta

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Zeta

N/A

XN3ZE

http://id.who.int/icd/
entity/755161604

SARS-CoV-2 Zeta

not found

SARS-CoV-2 Eta

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Eta

N/A

XN2V4

http://id.who.int/icd/
entity/60855142

SARS-CoV-2 Eta

not found

SARS-CoV-2 Theta

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Theta

N/A

XN4Q1

http://id.who.int/icd/
entity/217899880

SARS-CoV-2 Theta

not found

SARS-CoV-2 Iota

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Iota

N/A

XN3UD

http://id.who.int/icd/
entity/1721681473

SARS-CoV-2 Iota

not found

SARS-CoV-2 Kappa

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Kappa

N/A

XN9L8

http://id.who.int/icd/
entity/1325943094

SARS-CoV-2 Kappa

not found

SARS-CoV-2 Lambda

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Lambda

N/A

XN6AM

http://id.who.int/icd/
entity/403405056

SARS-CoV-2 Lambda

not found

SARS-CoV-2 Mu

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Mu

N/A

XN39J

http://id.who.int/icd/
entity/1453315432

SARS-CoV-2 Mu

not found

SARS-CoV-2 Omicron

Codes

ICD-11

N/A

Input option

SARS-CoV-2 Omicron

N/A

XN161

http://id.who.int/icd/
entity/335495681

SARS-CoV-2 Omicron

not found

Data needed for each SARS-CoV-2 test event

REQUIRED

Type of Test

Name of the type of test that was conducted e.g. NAAT or Ag-RDT

Coding

ICHI

N/A

Select one

N/A

There are no index terms associated with this entity

15220000

Laboratory test (procedure)

N/A

Viral nucleic acid amplification test or NAAT

Codes

ICHI

N/A

Input Option

Viral nucleic acid amplification test or NAAT

N/A

not found

117244003

Nucleic acid probe method with amplification (procedure)

http://id.who.int/icd/
entity/1334426561

Viral nucleic acid amplification test

http://id.who.int/icd/
entity/1334426561

Rapid immunoassay detecting viral proteins or Ag-RDT

Codes

ICHI

N/A

Input Option

Rapid immunoassay detecting viral proteins or Ag-RDT

N/A

not found

414464004

Immunoassay method (procedure)

http://id.who.int/icd/
entity/2056159157

Rapid immunoassay detecting viral proteins

http://id.who.int/icd/
entity/2056159157

Data needed for each SARS-CoV-2 test event

OPTIONAL - RECOMMENDED

Test brand

The brand or trade name used to refer to the test conducted

Coding

As defined by Member State

N/A

Data needed for each SARS-CoV-2 test event

OPTIONAL - RECOMMENDED

Test manufacturer

Name of the manufacturer of the test conducted

Coding

As defined by Member State

N/A

Data needed for each SARS-CoV-2 test event

OPTIONAL - RECOMMENDED

Specimen Sample Origin

The type of sample that was taken (e.g. Nasopharyngeal swab, Oropharyngeal swab, Saliva specimen)

Coding

ICHI

N/A

Select one

N/A

123038009

Specimen (specimen)

Specimen collection

http://id.who.int/icd/
entity/1789591527

Nasopharyngeal swab

Codes

ICHI

N/A

Input Option

Nasopharyngeal swab

N/A

not found

N/A

258500001

Nasopharyngeal swab (specimen)

JAM.AH.XF

Specimen collection, nasopharynx

http://id.who.int/icd/
entity/350872817

Oropharyngeal swab

Codes

ICHI

N/A

Input Option

Oropharyngeal swab

N/A

not found

N/A

461911000124106

Swab specimen from oropharynx (specimen)

KAR.AH.XF

Specimen collection, oropharynx

http://id.who.int/icd/
entity/555916027

Pharyngeal swab

Codes

ICHI

N/A

Input Option

Pharyngeal swab

N/A

not found

N/A

472881004

Swab from pharynx (specimen)

KAR.AH.XF

Specimen collection, oropharynx

http://id.who.int/icd/
entity/555916027

Swab from nasal sinus

Codes

ICHI

N/A

Input Option

Swab from nasal sinus

N/A

not found

N/A

472901003

Swab from nasal sinus (specimen)

JAE.AH.XF

Specimen collection, paranasal sinus, not elsewhere classified

http://id.who.int/icd/
entity/608172011

Saliva specimen

Codes

ICHI

N/A

Input Option

Saliva specimen

N/A

not found

N/A

119342007

Saliva specimen (specimen)

KAZ.AH.XD

Specimen collection, saliva

http://id.who.int/icd/
entity/1162766848

Blood specimen

Codes

ICHI

N/A

Input Option

Blood specimen

N/A

not found

N/A

119297000

Blood specimen (specimen)

DIA.AH.XA

Specimen collection, blood

http://id.who.int/icd/
entity/1695591348

Plasma specimen

Codes

ICHI

N/A

Input Option

Plasma specimen

N/A

not found

N/A

119361006

Plasma specimen (specimen)

DIA.AH.XA

Specimen collection, blood

http://id.who.int/icd/
entity/1695591348

Serum specimen

Codes

ICHI

N/A

Input Option

Serum specimen

N/A

not found

N/A

119364003

Serum specimen (specimen)

DIA.AH.XA

Specimen collection, blood

http://id.who.int/icd/
entity/1695591348

Acellular blood (serum or plasma) specimen

Codes

ICHI

N/A

Input Option

Acellular blood (serum or plasma) specimen

N/A

not found

N/A

122592007

Acellular blood (serum or plasma) specimen (specimen)

DIA.AH.XA

Specimen collection, blood

http://id.who.int/icd/
entity/1695591348

Data needed for each SARS-CoV-2 test event

REQUIRED

Date and time of sample collection

Date and time when sample was collected ___________________

DateTime

Compatible with HL7 FHIR dateTime with time zone specified https://www.hl7.org/fhir/
datatypes.html#dateTime

N/A

Compatible with HL7 FHIR dateTime with time zone specified https://www.hl7.org/fhir/
datatypes.html#dateTime"

N/A

Data needed for each SARS-CoV-2 test event

REQUIRED

Test Result

Detected or Not Detected presence of SARS-CoV-2 infection

Coding

ICD-11

N/A

Select one

N/A

http://id.who.int/icd/
entity/1730556128

N/A

Detected

Codes

ICD-11

N/A

Input Option

Detected

N/A

RA01.0

http://id.who.int/icd/
entity/1790791774

COVID-19, virus identified includes index term COVID-19 confirmed with laboratory testing with symptoms

1240581000000104

Severe acute respiratory syndrome coronavirus 2 detected (finding)

not found

Not Detected

Codes

ICD-11

N/A

Input Option

Not Detected

N/A

QA02

http://id.who.int/icd/
entity/461464819

Medical observation or evaluation for suspected diseases or conditions, ruled out

1240591000000102

Severe acute respiratory syndrome coronavirus 2 not detected (finding)

not found

Data needed for each SARS-CoV-2 test event

OPTIONAL - RECOMMENDED

Test centre or facility name

A codable name or identifier of the facility responsible for conducting the test

Coding

As defined by Member State

N/A

Data needed for each SARS-CoV-2 test event

REQUIRED

Test centre country

The country in which the individual has been tested

Coding

ISO 3166-1 alpha-3 (or numeric)

N/A

ISO 3166-1 alpha-3 (or numeric)

N/A

Certificate metadata

REQUIRED

Certificate issuer

The authority or authorized organization that issued the laboratory results certificate.

String

N/A

Certificate metadata

REQUIRED

Health Certificate Identifier (HCID)

Unique identifier used to associate the lab result represented in a paper lab report to its digital representation(s).

N/A

Certificate metadata

OPTIONAL

Certificate valid from

Date and time at which lab result certificate became valid. No health or clinical inferences should be made from this date

DateTime

Compatible with HL7 FHIR dateTime with time zone specified https://www.hl7.org/fhir/
datatypes.html#dateTime

N/A

Compatible with HL7 FHIR dateTime with time zone specified

___________________________

N/A

Certificate metadata

REQUIRED

Certificate schema version

Version of the core data set and HL7 FHIR Implementation Guide that the certificate is using.

String

N/A