| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| C8449 (Diagnosis) - Prph T-cell lymphoma, NEC, extrnod and solid organ sites (Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites) | Single To Single | 20270 (Diagnosis) - Periph T cell lym xtrndl (Peripheral T cell lymphoma, unspecified site, extranodal and solid organ sites) |
| CMS/CDC General Equivalence Mappings |
| C8449 (Diagnosis) - Prph T-cell lymphoma, NEC, extrnod and solid organ sites (Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites) | Single To Single | Alternative #1: 20270 (Diagnosis) - Periph T cell lym xtrndl (Peripheral T cell lymphoma, unspecified site, extranodal and solid organ sites) |