F01.B1

Vascular dementia, moderate, with behavioral disturbance

FY2027Chapter 5: Mental, Behavioral and Neurodevelopmental disorders/F01–F09 Mental disorders due to known physiological conditions

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

F01.B1 is a non-billable ICD-10-CM code header for vascular dementia, moderate, with behavioral disturbance. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are F01.B11 Vascular dementia, moderate, with agitation and F01.B18 Vascular dementia, moderate, with other behavioral disturbance. Its coding notes include a Code first instruction and 1 Excludes2 entry.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Dementia codes depend on severity documented by the provider. If severity is not documented, the unspecified severity code is assigned. If severity progresses during an inpatient stay, one code is assigned for the highest level.

Guidelines I.C.5.dDementia: severityRead the official text

Code first

If the underlying condition listed here is present and known, sequence it first.

Inherited from F01 Vascular dementia
  • , if applicable, any causal condition

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (1 note)
Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

Further defines or gives examples of the content of the category.

Inherited from F01 Vascular dementia
  • arteriosclerotic dementia
  • major neurocognitive disorder due to vascular disease
  • multi-infarct dementia
Also from chapter/block level (1 note)
Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders
  • disorders of psychological development

Notes

Also from chapter/block level (1 note)
Inherited from F01–F09 Mental disorders due to known physiological conditions
  • This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.

More specific codes under F01.B1 2