## CodeSystem Comparison between http://smart.who.int/trust/CodeSystem/KeyUsage-UAT vs http://smart.who.int/trust/CodeSystem/KeyUsage-UAT

### Messages

Error | CodeSystem.version | Values for version differ: '1.5.0' vs '1.6.0'
Information | CodeSystem.date | Values for date differ: '2026-04-27T07:28:36+00:00' vs '2026-05-08T11:37:03+00:00'

### Metadata

Name | Value | Comments
--- | --- | ---
caseSensitive | false |
compositional |  |
content | complete |
copyright |  |
date | 2026-04-27T07:28:36+00:00 | 2026-05-08T11:37:03+00:00 | Values Differ
description | CodeSystem for GDHCN Key Usage that has usage codes for verification keys published to the Trust Network as defined by the [certificate governance](concepts_certificate_governance.html) for User Acceptance Testing environment |
experimental | true |
hierarchyMeaning |  |
jurisdiction |  |
jurisdiction[0] | http://unstats.un.org/unsd/methods/m49/m49.htm#001 |
name | KeyUsage-UAT |
publisher | WHO |
purpose |  |
status | active |
title | WHO GDHCN Key Usage CodeSystem - UAT |
url | http://smart.who.int/trust/CodeSystem/KeyUsage-UAT |
version | 1.5.0 | 1.6.0 | Values Differ
versionNeeded |  |

### Concepts

Code | Display | Comments
--- | --- | ---
SCA | Signer Certificate Authority (SCA) |
DSC | Document Signing Certificate (DSC) |
DECA | Data Exchange Certificate Authority (DECA) |
DESC | Data Exchange Signing Certificate (DESC) |
TLS | Transport Layer Security (TLS) |
UP | Upload (UP) |