| Selected countries | America | England | Australia | Iran |
|---|---|---|---|---|
| Classification and nomenclature systems | ||||
| SNOMED CT | | − | − | No specific classification and nomenclature system is used |
| LOINC | | − | − | |
| ICD-10 | − | | | |
| ICD-9 | − | − | | |
| ICD-10-CM | | − | − | |
| ICD-9-CM | | − | − | |
| Enzyme codes | | − | − | |
| OMIM codes | | − | − |