| # | | Name | Source | Ver | Description |
| 1 | | Extension - Date Day | hl7.fhir.us.vrsandbox#current | R4 | The day portion (DD) of the partial date. |
| 2 | | Extension - Date Day | hl7.fhir.us.mdi#current | R4 | The day portion (DD) of the partial date. |
| 3 | | Extension - Date Day - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents the day portion (DD) of the partial date. |
| 4 | | Extension - Date Month | hl7.fhir.us.vrsandbox#current | R4 | The month portion (MM) of the partial date. |
| 5 | | Extension - Date Month | hl7.fhir.us.mdi#current | R4 | The month portion (MM) of the partial date. |
| 6 | | Extension - Date Month - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents the month portion (MM) of the partial date. |
| 7 | | Extension - Date Time | hl7.fhir.us.vrsandbox#current | R4 | The time portion (DD) of the partial date. |
| 8 | | Extension - Date Time | hl7.fhir.us.mdi#current | R4 | The time portion (DD) of the partial date. |
| 9 | | Extension - Date Time - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents the time portion (DD) of the partial date. |
| 10 | | Extension - Date Year | hl7.fhir.us.mdi#current | R4 | The year portion (YYYY) of the partial date.
The MDI Extension - Date Year artifact overlaps with the VRDR Date Year artifact. |
| 11 | | Extension - Date Year - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents the year portion (YYYY) of the partial date. |
| 12 | | Extension - Partial Date - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents values of a partial date. |
| 13 | | Extension - Partial DateTime | hl7.fhir.us.mdi#current | R4 | Provides values of a partial dateTime |
| 14 | | Extension - Partial DateTime | hl7.fhir.us.vrsandbox#current | R4 | Provides values of a partial dateTime |
| 15 | | Extension - Partial DateTime - Vital Records | hl7.fhir.us.vr-common-library#current | R4 | This Extension profile represents Provides values of a partial dateTime |
| 16 | | Partial Date | hl7.fhir.us.vrsandbox#current | R4 | Provides values of a partial date (Extension) |
| 17 | | Partial Date | hl7.fhir.us.vrdr#current | R4 | Provides values of a partial date (Extension) |
| 18 | | Partial Date Time | hl7.fhir.us.vrsandbox#current | R4 | Provides values of a partial dateTime (Extension) |
| 19 | | Partial Date Time | hl7.fhir.us.vrsandbox#current | R4 | Provides values of a partial dateTime (Extension).
If a component is missing, it is assumed unknown.
* This extension SHOULD NOT be used when the value can be expressed as a [dateTime](https://build.fhir.org/datatypes.html#dateTime), specifically YYYY, YYYY-MM, YYYY-MM-DD, or a full dateTime.
* This extension SHOULD NOT be used to express that the dateTime in its entirety is missing/unknown. In this case a simple dataAbsent reason extension should be used on the dateTime.
* This extension SHOULD be used to express missing components of dateTime including XXXX-XX-DD, YYYY-XX-DD, YYYY-MM-XX, as well as all cases where the time is known, but one or more components of the date is unknown.
* If a component is missing, the interpretation should be equivalent to it being present, with a data absent reason of 'unknown'. If the data absent reason is other than 'unknown', the component may be included wih a data absent reason.
When the known components of the date can be expressed as a valid dateTime, the value SHALL be present. So, for example 2022-12-XX-1201212, the dateTime value should be "2022-12". |
| 20 | | Partial Date Time | hl7.fhir.us.vrdr#current | R4 | Provides values of a partial dateTime (Extension) |