ICD-10 Code for CADASIL
The default ICD-10-CM 2027 code for cadasil (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy) is I67.850 – Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy. More specific codes depend on the details documented, as listed in the official index (1 codes, 1 billable).
- Main code
I67.850– Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy- Billable
- Yes
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.