F01.5Vascular dementia, unspecified severity

F01.5 is the ICD-10-CM diagnosis code for vascular dementia, unspecified severity. It belongs to category F01 (vascular dementia), block F01-F09 (mental disorders due to known physiological conditions) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within F01, choose F01.5 (unspecified severity) only when documentation doesn't support a more specific option: mild (F01.A), moderate (F01.B) and severe (F01.C).

To report this condition, pick the subcode that matches the documentation: F01.50 (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety), F01.51 (with behavioral disturbance), F01.52 (with psychotic disturbance), F01.53 (with mood disturbance) and F01.54 (with anxiety).

Code first: , if applicable, any causal condition.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2023 (title revised).