ICD-10-CM 2027 diagnosis code
F01.BVascular dementia, moderate
F01.B is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.
Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About F01.B
F01.B is the ICD-10-CM diagnosis code for vascular dementia, moderate. 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 (vascular dementia), F01.B is specifically for vascular dementia, moderate. Related codes cover unspecified severity (F01.5), mild (F01.A) and severe (F01.C).
To report this condition, pick the subcode that matches the documentation: F01.B0 (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety), F01.B1 (with behavioral disturbance), F01.B2 (with psychotic disturbance), F01.B3 (with mood disturbance) and F01.B4 (with anxiety).
Code first: , if applicable, any causal condition.
It was added in FY2023, effective October 1, 2022.
Specific codes under F01.B
- F01.B0Vascular dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxietyBillable
- F01.B1Vascular dementia, moderate, with behavioral disturbance
- F01.B2Vascular dementia, moderate, with psychotic disturbanceBillable
- F01.B3Vascular dementia, moderate, with mood disturbanceBillable
- F01.B4Vascular dementia, moderate, with anxietyBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to F01.B.
› From F01 Vascular dementia
- arteriosclerotic dementia
- major neurocognitive disorder due to vascular disease
- multi-infarct dementia
- , if applicable, any causal condition
Broader instructions also apply from F01-F09 Mental disorders due to known physiological conditions and Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Codes whose notes reference F01.B
- F02Excludes2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2023 (effective 10/1/2022): Added
- No changes since FY2023.
Common questions about F01.B
Is F01.B billable?
- No. F01.B is a header code. Report one of its more specific subcodes instead.