# ObservationDefinition

## Get FHIR r4 observation definitions

 - [GET /site/{siteId}/fhir/observation-definition](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_getobservationdefinitions.md)

## Create FHIR r4 observation definition

 - [POST /site/{siteId}/fhir/observation-definition](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_createobservationdefinition.md)

## Get FHIR r4 observation definition by ID

 - [GET /site/{siteId}/fhir/observation-definition/{id}](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_getobservationdefinition.md)

## Update FHIR r4 observation definition

 - [PUT /site/{siteId}/fhir/observation-definition/{id}](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_updateobservationdefinition.md)

## Delete FHIR r4 observation definition

 - [DELETE /site/{siteId}/fhir/observation-definition/{id}](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_deleteobservationdefinition.md)

## Get FHIR r4 observation definition history by ID

 - [GET /site/{siteId}/fhir/observation-definition/{id}/history](https://docs.heydonto.com/apis/fhir/openapi/observationdefinition/fhirobservationdefinitioncontroller_getobservationdefinitionhistory.md)