This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions icon

FHIR Infrastructure icon Work Group Maturity Level: 0Trial Use Compartments: N/A

Filter content from an array in a large resource such as List or Group. See Operations for Large Resources.

The canonical URL for this operation definition is


Formal Definition (as a OperationDefinition).

URL: [base]/[Resource]/[id]/$filter

This is not an idempotent operation

In Parameters:

Resource containing content that acts as a filter. See Operations for Large Resources.

Out Parameters:

Resource containing content matching the filter. See Operations for Large Resources.

Note: as this is the only out parameter, it is a resource, and it has the name 'return', the result of this operation is returned directly as a resource


For more information about operations, including how they are invoked, see Operations.