F02

Non-billable

Dementia in other diseases classified elsewhere

F02 is the ICD-10-CM code for Dementia in other diseases classified elsewhere. It is a non-billable category code — use a more specific child code such as F02.8 for billing.

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

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

Cases of dementia due, or presumed to be due, to causes other than Alzheimer disease or cerebrovascular disease. Onset may be at any time in life, though rarely in old age.

What this means — in plain language

MedlinePlus · NIH

What is dementia? Dementia is a loss of mental functions that is severe enough to affect your daily life and activities. These functions include: Memory Language skills Visual perception (your ability to make sense of what you see) Problem solving Trouble with everyday tasks The ability to focus and pay attention It is normal to become a bit more forgetful as you age. But dementia is not a normal part of aging. It…

Read more about Dementia at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Major neurocognitive disorder in other diseases classified elsewhere

Excludes1 — not coded here

  • mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)

Excludes2 — not included here

  • dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
  • vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)

Code first

  • the underlying physiological condition, such as:
  • Alzheimer's (G30.-)
  • cerebral lipidosis (E75.4)
  • Creutzfeldt-Jakob disease (A81.0-)
  • epilepsy and recurrent seizures (G40.-)
  • frontotemporal dementia (G31.09)
  • hepatolenticular degeneration (E83.01)
  • human immunodeficiency virus [HIV] disease (B20)
  • Huntington's disease (G10)
  • hypercalcemia (E83.52)
  • hypothyroidism, acquired (E00-E03.-)
  • intoxications (T36-T65)
  • Jakob-Creutzfeldt disease (A81.0-)
  • multiple sclerosis (G35-)
  • neurocognitive disorder with Lewy bodies (G31.83)
  • neurosyphilis (A52.17)
  • niacin deficiency [pellagra] (E52)
  • other frontotemporal neurocognitive disorder (G31.90)
  • Parkinson's disease (G20.-)
  • Pick's disease (G31.01)
  • polyarteritis nodosa (M30.0)
  • prion disease (A81.9)
  • systemic lupus erythematosus (M32.-)
  • traumatic brain injury (S06.-)
  • trypanosomiasis (B56.-, B57.-)
  • vitamin B deficiency (E53.8)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code F02?
F02 is the ICD-10-CM code for "Dementia in other diseases classified elsewhere". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F02 a billable code?
No — F02 is a non-billable header code. Use a more specific child code (such as F02.8) for billing.
What are the subcodes of F02?
F02 has 4 more specific child codes, including F02.8, F02.A, F02.B.
What is excluded from F02?
Excludes1 (not coded here): mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-).

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

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