| Name | Value | Comments |
|---|
 compose.inactive | | |
| compose.lockedDate | | |
| copyright | 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. | |
| date | 2025-06-27 | |
| description | All codes in the ISO-8601-Derived Periods code system. Note that this value set cannot be expanded because this set is effectively infinite, the set of all possible intervals of time. | |
| experimental | false | |
| immutable | true | |
| jurisdiction | | |
 jurisdiction[0] | http://unstats.un.org/unsd/methods/m49/m49.htm#001 | |
| name | ISO8601DerivedPeriods | |
| publisher | HL7 International / Clinical Quality Information | |
| purpose | | |
| status | active | |
| title | ISO-8601-Derived Periods | |
| url | http://terminology.hl7.org/ValueSet/iso-8601-derived-periods | |
| version | 1.0.0 | |