This page describes various setting that can be applied to the validation support repository in order to control validation.
The Local Reference Policy setting can be used to control the behavior when validating a reference from one resource to another. This setting should be carefully considered, since validating a reference usually means loading the target resource and potentially parsing it and extracting parts of it. In performance sensitive environments, this can have a measurable effect on throughput, although it does improve the quality of the validation.
This setting should be configured on the FHIR Storage repository whose resources are being validated (as opposed to the FHIR Storage repository being used for validation support, if these are not the same repository).
The following values may be used:
The Unknown CodeSystem Validation Policy determines what the validator should do if it encounters a Coding in a resource where the CodeSystem (Coding.system) value can not be resolved.