| CLASS | PHENX | LP95321-3 |
| COMPONENT | How old were you when your menstrual periods began | LP116900-4 |
| PROPERTY | Time | LP6879-3 |
| TIME_ASPCT | Pt | LP6960-1 |
| SYSTEM | ^Patient | LP310005-6 |
| SCALE_TYP | Qn | LP7753-9 |
| METHOD_TYP | PhenX | LP95333-8 |
| AnswerList | PhenX10_07_ age first period | LL1196-6 |
| parent | Clinical terms not yet categorized | LP248771-0 |
| CLASSTYPE | Clinical class | |
| EXAMPLE_UNITS | years | |
| EXAMPLE_UCUM_UNITS | a | |
| UNITSREQUIRED | N | |
| STATUS | TRIAL |
| LONG_COMMON_NAME | en-US | How old were you when your menstrual periods began [PhenX] |
| LONG_COMMON_NAME | en-US | How old were you when your menstrual periods began [PhenX] |
| SHORTNAME | en-US | Menstrual period began first age PhenX |
| LONG_COMMON_NAME | es-MX | ¿Qué edad tenía cuando comenzaron sus períodos menstruales?: Paciente:Punto temporal:Tiempo:Cuantitativo:PhenX |
LOINC Version: 2.81