F03.C3
✓ Billable
Unspecified dementia, severe, with mood disturbance
ICD-10-CM · FY2026 · Mental, Behavioral and Neurodevelopmental Disorders
Code
F03.C3
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Mental, Behavioral and Neurodevelopmental Disorders
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code F03.C3?
ICD-10-CM code F03.C3 represents Unspecified dementia, severe, with mood disturbance. It is a billable diagnosis code in the Mental, Behavioral and Neurodevelopmental Disorders chapter, effective October 1, 2025 – September 30, 2026.
Is F03.C3 billable?
Yes. F03.C3 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is F03.C3 in?
F03.C3 belongs to the Mental, Behavioral and Neurodevelopmental Disorders chapter (F01–F99) of ICD-10-CM.
Related codes in the F03 category
F03
Unspecified dementia
Non-billable
F03.9
Unspecified dementia, unspecified severity
Non-billable
F03.A
Unspecified dementia, mild
Non-billable
F03.B
Unspecified dementia, moderate
Non-billable
F03.C
Unspecified dementia, severe
Non-billable
F03.90
Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
Billable
F03.91
Unspecified dementia, unspecified severity, with behavioral disturbance
Non-billable
F03.92
Unspecified dementia, unspecified severity, with psychotic disturbance
Billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →