| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| T80419A (Diagnosis) - Rh incompatibility w hemolytic transfs react, unsp, init (Rh incompatibility with hemolytic transfusion reaction, unspecified, initial encounter) | Single To Single | 99971 (Diagnosis) - Rh incomp/HTR NEC (Rh incompatibility with hemolytic transfusion reaction not specified as acute or delayed) |
| CMS/CDC General Equivalence Mappings |
| T80419A (Diagnosis) - Rh incompatibility w hemolytic transfs react, unsp, init (Rh incompatibility with hemolytic transfusion reaction, unspecified, initial encounter) | Single To Single | Alternative #1: 99971 (Diagnosis) - Rh incomp/HTR NEC (Rh incompatibility with hemolytic transfusion reaction not specified as acute or delayed) |