WHO SMART Trust
1.5.0 - release

WHO SMART Trust, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-trust/tree/v1.5.0-release-candidate and changes regularly. See the Directory of published versions

## CodeSystem: WHO GDHCN Trust Domains

Official URL: http://smart.who.int/trust/CodeSystem/Domains | Version: 1.5.0
Active as of 2026-04-27 | Computable Name: Domains

CodeSystem for define WHO GDHCN Trust Domains for Production environment.

This Code system is referenced in the content logical definition of the following value sets:

- Domains

This case-sensitive code system `http://smart.who.int/trust/CodeSystem/Domains` defines the following codes:

Code | Display | Definition
DDCC | DDCC | The Digital Documentation for COVID-19 Certificates (DDCC) is defined by the SMART Implementation Guide at http://smart.who.int/ddcc
IPS-PILGRIMAGE | IPS for Pilgrimage | The IPS for Pilgrimage is defined by the SMART Implementation Guide at http://smart.who.int/ips-pilgrimage
PH4H | Pan-American Highway for Digital Health (PH4H) | The Pan-American Highway for Digital Health (PH4H) is defined by SMART Implementation Guide at https://worldhealthorganization.github.io/smart-ph4h/
ICVP | International Certificate of Vaccination of Prophylaxsis (ICVP) | The International Certificate of Vaccination of Prophylaxsis (ICVP) is defined by SMART Implementation Guide at https://worldhealthorganization.github.io/smart-icvp/