F01.B3
Vascular dementia, moderate, with mood disturbance
F01.B3 (also written F01B3) is a billable ICD-10-CM diagnosis code for vascular dementia, moderate, with mood disturbance. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 24 codes in category F01 (Vascular dementia). The Alphabetic Index lists it under 1 entry. 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.
Code first
If the underlying condition listed here is present and known, sequence it first.
- , 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)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Behavioral Health clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Hospital CC
Counts as a complication or comorbidity (CC) when reported as a secondary diagnosis on an inpatient claim. It does not count when the principal diagnosis is one of the 20 codes in its exclusion list. Some MS-DRGs also ignore a CC or MCC that defines the DRG.
Source: CMS MS-DRG Definitions Manual v44, effective October 1, 2026, Appendix CIPF Primary
IPF MS-DRG adjustment. A principal diagnosis of this code groups to this MS-DRG:
| MS-DRG | Description | Factor |
|---|---|---|
| 884 | Organic disturbances & intellectual disabilities | 1.08 |
Includes
Further defines or gives examples of the content of the category.
- arteriosclerotic dementia
- major neurocognitive disorder due to vascular disease
- multi-infarct dementia
Also from chapter/block level (1 note)
- disorders of psychological development
Inclusion terms
Conditions classified to this code.
- Major neurocognitive disorder due to vascular disease, moderate, with mood disturbance such as depression, apathy, or anhedonia
- Vascular dementia, moderate, with mood disturbance such as depression, apathy, or anhedonia
Notes
Also from chapter/block level (1 note)
- 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.
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry