| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| G43001 (Diagnosis) - Migraine w/o aura, not intractable, with status migrainosus (Migraine without aura, not intractable, with status migrainosus) | Single To Single | 34612 (Diagnosis) - Mgrn wo aura wo ntrc mgr (Migraine without aura, without mention of intractable migraine with status migrainosus) |
| CMS/CDC General Equivalence Mappings |
| G43001 (Diagnosis) - Migraine w/o aura, not intractable, with status migrainosus (Migraine without aura, not intractable, with status migrainosus) | Single To Single | Alternative #1: 34612 (Diagnosis) - Mgrn wo aura wo ntrc mgr (Migraine without aura, without mention of intractable migraine with status migrainosus) |