F03.C1Header code — not billable

Unspecified dementia, severe, with behavioral disturbance

Chapter
5. Mental, Behavioral and Neurodevelopmental disorders
Category
F03
Effective date
October 1, 2026

Related codes in category F03

Frequently asked questions

What is ICD-10 code F03.C1?

F03.C1 is an ICD-10-CM diagnosis code for Unspecified dementia, severe, with behavioral disturbance.

Is F03.C1 a billable code?

No. F03.C1 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is F03.C1 in?

F03.C1 falls under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

When did F03.C1 become effective?

F03.C1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to F03.C1?

F03.C1 belongs to category F03, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.