Generated Narrative: ValueSet time-period-ranges Include all codes defined in http://terminology.hl7.org/CodeSystem/time-period-ranges version Not Stated (use latest from terminology server)
HL7 International Clinical Quality Information Work Group
All codes in the Time Period Ranges code system. Note that this value set is typically not expanded because the full set contains millions of codes, the set of all possible ranges of time periods expressible within the grammar.
Adapted from content published by IHE Copyright (c) 2015 [IHE International, Inc](http://www.ihe.net/Governance/#Intellectual_Property). Used here according to the terms of the [CC BY 4 License](https://creativecommons.org/licenses/by/4.0/). Makes use of duration definitions as defined in the [ISO 8601](https://www.iso.org/iso-8601-date-and-time-format.html) specification.