| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| G40309 (Diagnosis) - Gen idiopathic epilepsy, not intractable, w/o stat epi (Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus) | Single To Single | 34510 (Diagnosis) - Gen cnv epil w/o intr ep (Generalized convulsive epilepsy, without mention of intractable epilepsy) |
| CMS/CDC General Equivalence Mappings |
| G40309 (Diagnosis) - Gen idiopathic epilepsy, not intractable, w/o stat epi (Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus) | Single To Single | Alternative #1: 34510 (Diagnosis) - Gen cnv epil w/o intr ep (Generalized convulsive epilepsy, without mention of intractable epilepsy) |