| parent | Hydroxyproline.free | LP29068-1 | 
| child | Hydroxyproline.free/Creatinine | Urine | Chemistry - non-challenge | LP384061-0 | 
| STATUS | ACTIVE | 
| PartDisplayName | en-US | Hydroxyproline.free/Creatinine | 
| DisplayName | en-US | Hydroxyproline.free/Creatinine | 
LOINC Version: 2.78