| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| S02112B (Diagnosis) - Type III occipital condyle fracture, unspecified side, 7thB (Type III occipital condyle fracture, unspecified side, initial encounter for open fracture) | Single To Single | 80150 (Diagnosis) - Open skull base fracture (Open fracture of base of skull without mention of intracranial injury, unspecified state of consciousness) |
| CMS/CDC General Equivalence Mappings |
| S02112B (Diagnosis) - Type III occipital condyle fracture, unspecified side, 7thB (Type III occipital condyle fracture, unspecified side, initial encounter for open fracture) | Single To Single | Alternative #1: 80150 (Diagnosis) - Open skull base fracture (Open fracture of base of skull without mention of intracranial injury, unspecified state of consciousness) |