| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| N142 (Diagnosis) - Nephrop induced by unsp drug, medicament or biolg sub (Nephropathy induced by unspecified drug, medicament or biological substance) | Single To Single | 58389 (Diagnosis) - Nephritis NEC (Nephritis and nephropathy, not specified as acute or chronic, with other specified pathological lesion in kidney) |
| CMS/CDC General Equivalence Mappings |
| N142 (Diagnosis) - Nephrop induced by unsp drug, medicament or biolg sub (Nephropathy induced by unspecified drug, medicament or biological substance) | Single To Single | Alternative #1: 58389 (Diagnosis) - Nephritis NEC (Nephritis and nephropathy, not specified as acute or chronic, with other specified pathological lesion in kidney) |