| Recommended Mapping (based on statistical analysis) |
| Source ICD-9 | Mapping Type | Target ICD-10 |
| 4359 (Diagnosis) - Trans cereb ischemia NOS (Unspecified transient cerebral ischemia) | Single To Single | G459 (Diagnosis) - Transient cerebral ischemic attack, unspecified |
| CMS/CDC General Equivalence Mappings |
| 4359 (Diagnosis) - Trans cereb ischemia NOS (Unspecified transient cerebral ischemia) | Single To Single | Alternative #1: G459 (Diagnosis) - Transient cerebral ischemic attack, unspecified |
Single To Single | Alternative #2: I67848 (Diagnosis) - Other cerebrovascular vasospasm and vasoconstriction | Single To Single | Alternative #3: I67841 (Diagnosis) - Reversible cerebrovascular vasoconstriction syndrome |