ICD-10-CM > I00-I99 > I60-I69 > I67 > I67.8 > I67.85 I67.85 Hereditary cerebrovascular diseases Non-Billable/Non-Specific Codes I67.850Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathyI67.858Other hereditary cerebrovascular disease