{description: The **$member-match** operation allows one health plan to retrieve a unique identifier for a member from another health plan using a member's demographic and coverage information.  This identifier can then be used to perform subsequent queries and operations. Members implementing a deterministic match will require a match on member id or subscriber id at a minimum.  (I.e. A pure demographic match will not be supported by such implementations.), package_name: hl7.fhir.us.davinci-hrex, name: MemberMatch, type: 'true', package_version: 1.0.0, class: operation, kind: operation, url: 'http://hl7.org/fhir/us/davinci-hrex/OperationDefinition/member-match', version: 1.0.0}