F03.C1
Unspecified dementia, severe, with behavioral disturbance
F03.C1 is a non-billable ICD-10-CM code header for unspecified dementia, severe, 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 F03.C11 Unspecified dementia, severe, with agitation and F03.C18 Unspecified dementia, severe, with other behavioral disturbance. Its coding notes include 3 Excludes2 entries.
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.
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)
Includes
Further defines or gives examples of the content of the category.
Also from chapter/block level (1 note)
- disorders of psychological development
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.