clinik.activityDefinitions
Activity definitions (FHIRActivityDefinition) describe clinical activities that can be performed — templates for orders, referrals, procedures, and other clinical actions.
create
Example
read / update / delete / search
Same pattern as other resources. Search supportsstatus, name, title, kind, code filters.
For advanced ActivityDefinition features like dynamicValue, expression, library, or relatedArtifact, use the FHIR Passthrough.