| parent | Blood Group Systems | LP32652-7 |
| child | I | LP14589-3 |
| child | IH | LP98148-7 |
| child | I group phenotype | LP36039-3 |
| child | I (int) subtype | LP18670-7 |
| child | little i | LP14594-3 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | I group |
| DisplayName | en-US | I group |
LOINC Version: 2.78