US Core Implementation Guide
9.0.0 - STU 9 US

This page is part of the US Core (v9.0.0: STU9) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

SearchParameter: USCoreDocumentreferencePeriod

Official URL: http://hl7.org/fhir/us/core/SearchParameter/us-core-documentreference-period Version: 9.0.0
Standards status: Trial-use Maturity Level: 5 Computable Name: USCoreDocumentreferencePeriod
Other Identifiers: OID:2.16.840.1.113883.4.642.40.2.40.34

Time of service that is being documented
NOTE: This SearchParameter is defined only to document Server and Client expectations. Its definition is derived from the standard FHIR SearchParameter and it uses the Conformance expectation extension to define additional expectations for the following SearchParameter elements:

  • multipleAnd
  • multipleOr
  • comparator
  • modifier
  • chain

It SHALL NOT be used as a search parameter for search. Servers and Clients SHOULD use the standard FHIR SearchParameter.

id us-core-documentreference-period

derivedFrom : http://hl7.org/fhir/SearchParameter/DocumentReference-period

status : Active

date : 2024-11-17

code : "period"

base : DocumentReference

type : Date/DateTime

expression : DocumentReference.context.period

multipleOr : true (Conformance Expectation = MAY)

multipleAnd : true (Conformance Expectation = SHOULD)

comparator codes :

  • "eq" Equals (Conformance Expectation = MAY)
  • "ne" Not Equals (Conformance Expectation = MAY)
  • "gt" Greater Than (Conformance Expectation = SHALL)
  • "ge" Greater or Equals (Conformance Expectation = SHALL)
  • "lt" Less Than (Conformance Expectation = SHALL)
  • "le" Less of Equal (Conformance Expectation = SHALL)
  • "sa" Starts After (Conformance Expectation = MAY)
  • "eb" Ends Before (Conformance Expectation = MAY)
  • "ap" Approximately (Conformance Expectation = MAY)