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F03

Non-billable

Unspecified dementia

F03 is the ICD-10-CM code for Unspecified dementia. It is a non-billable category code — use a more specific child code such as F03.9 for billing.

Status
Header (non-billable)
Chapter
F01-F99
Subcodes
4
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

Includes

  • •Major neurocognitive disorder NOS
  • •Presenile dementia NOS
  • •Presenile psychosis NOS
  • •Primary degenerative dementia NOS
  • •Senile dementia NOS
  • •Senile dementia depressed or paranoid type
  • •Senile psychosis NOS

Excludes2 — not included here

  • •dementia with delirium or acute confusional state (F05)
  • •mild memory disturbance due to known physiological condition (F06.8)

Frequently asked questions

What is ICD-10 code F03?
F03 is the ICD-10-CM code for "Unspecified dementia". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F03 a billable code?
No — F03 is a non-billable header code. Use a more specific child code (such as F03.9) for billing.
What are the subcodes of F03?
F03 has 4 more specific child codes, including F03.9, F03.A, F03.B.

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

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