LOINC
Version 2.70

97500-3Proof of COVID-19 immunization or negative status certificateActive

Term Description

A document (digital or paper format) that attests that a person has been vaccinated against coronavirus disease 2019 (COVID-19) or, alternatively, that they have a recent negative test result or have recovered from a recent infection. The certificate can be issued if a person has received one or more vaccine doses, if the patient can exhibit a certificate attesting he/she has completely recover from COVID-19 or if the patient can exhibit a negative test result, typically performed in the last 48 hours.
Source: Regenstrief LOINC

Fully-Specified Name

Component
Proof of COVID-19 immunization or negative status certificate
Property
Find
Time
Pt
System
{Setting}
Scale
Doc
Method
{Role}

Additional Names

Short Name
COVID-19 Immunization or Neg Cert

Basic Attributes

Class
DOC.ADMIN
Type
Clinical
First Released
Version 2.70
Last Updated
Version 2.70
Order vs. Observation
Both

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=97500-3