ICD-10 F02
Non-Billable HeaderDementia in other diseases classified elsewhere
About ICD-10-CM F02
ICD-10-CM code F02 represents Dementia in other diseases classified elsewhere. This is a non-billable header code in the Mental, Behavioral, and Neurodevelopmental chapter (block F02). The 2026 edition of ICD-10-CM F02 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with F02. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)
Type 2 Excludes
Not included here, the excluded code is not part of F02, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
- vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)
Includes
- Major neurocognitive disorder in other diseases classified elsewhere
Coding Notes
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)
Medicare LCD Coverage for F02
Local Coverage Determinations (LCDs) from CMS MACs that list F02 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F02.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but F02 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with F02
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To F02
Other codes in section F01-F09 (Mental disorders due to known physiological conditions).
ICD-10 F02, Billing FAQ
Is ICD-10 code F02 billable? +
No, F02 is a non-billable header code. Use a more specific child code from block F02 when submitting claims.
What codes are Type 1 Excludes for F02? +
Type 1 Excludes (never code together with F02): mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)
What codes are Type 2 Excludes for F02? +
Type 2 Excludes (may be coded together when both conditions exist): dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97); vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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