| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| C8390 (Diagnosis) - Non-follicular (diffuse) lymphoma, unsp, unspecified site (Non-follicular (diffuse) lymphoma, unspecified, unspecified site) | Single To Single | 20080 (Diagnosis) - Oth varn unsp xtrndl org (Other named variants of lymphosarcoma and reticulosarcoma, unspecified site, extranodal and solid organ sites) |
| CMS/CDC General Equivalence Mappings |
| C8390 (Diagnosis) - Non-follicular (diffuse) lymphoma, unsp, unspecified site (Non-follicular (diffuse) lymphoma, unspecified, unspecified site) | Single To Single | Alternative #1: 20080 (Diagnosis) - Oth varn unsp xtrndl org (Other named variants of lymphosarcoma and reticulosarcoma, unspecified site, extranodal and solid organ sites) |