This is the set of resources that conform to either of the profiles US Realm Date and Time - Interval (http://hl7.org/cda/us/ccda/StructureDefinition/USRealmDateTimeInterval) and US Realm Date and Time - Interval (http://hl7.org/cda/us/ccda/StructureDefinition/USRealmDateTimeInterval). E.g. what you have to deal with if you get resources conforming to one of them
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  IVL_TS | C | 1..* | Base for all types and resources Constraints: ivl-ts-center, ivl-value-shall, ivl-value-should | |
  nullFlavor | 0..1 | ?? | Binding: ?? (required) | |
| value | 0..1 | ?? | Either @value or low/high should be present, but not both | |
| operator | 0..1 | ?? | Binding: ?? (required) | |
  low | C | 0..1 | IVXB_TS | **MAY** be precise to at least the second Constraints: ts-shall-day, ts-should-minute |
 nullFlavor | 0..1 | ?? | Binding: ?? (required) | |
| value | 0..1 | ?? | ||
 inclusive | 0..1 | ?? | ||
| center | 0..1 | TS | ||
| width | 0..1 | PQ | ||
 high | C | 0..1 | IVXB_TS | **MAY** be precise to at least the second Constraints: ts-shall-day, ts-should-minute |
 nullFlavor | 0..1 | ?? | Binding: ?? (required) | |
| value | 0..1 | ?? | ||
| inclusive | 0..1 | ?? | ||
| Documentation for this format | ||||