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F03.C

Non-billable

Unspecified dementia, severe

F03.C is the ICD-10-CM code for Unspecified dementia, severe. It is a non-billable category code — use a more specific child code such as F03.C0 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Parent
F03
Subcodes
5
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code F03.C?
F03.C is the ICD-10-CM code for "Unspecified dementia, severe". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F03.C a billable code?
No — F03.C is a non-billable header code. Use a more specific child code (such as F03.C0) for billing.
What are the subcodes of F03.C?
F03.C has 5 more specific child codes, including F03.C0, F03.C1, F03.C2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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