| CLASS | OB.US | LP7830-5 |
| COMPONENT | Gestational age | LP19507-0 |
| PROPERTY | Time | LP6879-3 |
| TIME_ASPCT | Pt | LP6960-1 |
| SYSTEM | ^Fetus | LP310004-9 |
| SCALE_TYP | Qn | LP7753-9 |
| METHOD_TYP | US+Estimated from HC | LP6713-4 |
| parent | Gestational age | Fetus | OB ultrasound | LP416279-0 |
| CLASSTYPE | Clinical class | |
| ORDER_OBS | Observation | |
| EXAMPLE_UNITS | days | |
| EXAMPLE_UCUM_UNITS | d |
| LONG_COMMON_NAME | en-US | Gestational age estimated from Head circumference on US |
| LONG_COMMON_NAME | en-US | Gestational age estimated from Head circumference on US |
| SHORTNAME | en-US | GA from HC |
| SHORTNAME | es-AR | US.ESTIMATED FROM HC:tiempo:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM HC |
| SHORTNAME | pt-BR | GA from HC |
| LONG_COMMON_NAME | es-MX | Edad gestacional: Feto:Punto temporal:Tiempo:Cuantitativo:US+Estimated from HC |
LOINC Version: 2.80
FHIR