F02.80 Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

Billable ICD-10-CM code, FY2026.

Applicable to

• Dementia in other diseases classified elsewhere NOS
• Major neurocognitive disorder in other diseases classified elsewhere NOS

Applies from F02 Dementia in other diseases classified elsewhere

Includes

• Major neurocognitive disorder in other diseases classified elsewhere

Excludes1 (never code together)

• 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)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 127 — Dementia, Mild or Unspecified
• RxHCC V08: HCC 112 — Dementia, Except Alzheimer's Disease
• ESRD V24: HCC 52

MS-DRG index

Defines the logic of DRG(s) 884 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 294.10 Dementia in conditions classified elsewhere without behavioral disturbance

Medicare Code Edits (MCE v43.1 (April 2026))

• Manifestation codes as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and are not allowed as principal diagnosis.

Code annotations containing back-references to F02.80

Back-references to F02.80

• Use Additional: A81 Atypical virus infections of central nervous system ("dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)")
• Use Additional: G10 Huntington's disease ("dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)")
• Use Additional: G20 Parkinson's disease ("dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)")
• Use Additional: G30 Alzheimer's disease ("dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)")
• Use Additional: G31 Other degenerative diseases of nervous system, not elsewhere classified ("dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)")

Back-references to F02.8

• Code Also: G40.C Lafora progressive myoclonus epilepsy (", if applicable, associated conditions such as dementia (F02.8-)")

Back-references to F02

• Type 2 Excludes: F06 Other mental disorders due to known physiological condition ("dementia as classified in F01-F02")
• Type 1 Excludes: F06.7 Mild neurocognitive disorder due to known physiological condition ("dementia (F01.-, F02.-, F03.-)")
• Type 2 Excludes: F63.1 Pyromania ("mental disorders due to known physiological condition (F01-F09)")
• Type 2 Excludes: F63.2 Kleptomania ("stealing in mental disorders due to known physiological condition (F01-F09)")
• Type 1 Excludes: G31.84 Mild cognitive impairment of uncertain or unknown etiology ("dementia (F01.-, F02.-, F03.-)")

Diagnosis Index entries for F02.80

• Aphasia (amnestic) (global) (nominal) (semantic) (syntactic) › primary progressive
• Aphasia (amnestic) (global) (nominal) (semantic) (syntactic) › progressive isolated
• Atrophy, atrophic (of) › brain (cortex) (progressive) › frontotemporal circumscribed
• Atrophy, atrophic (of) › sclerosis, lobar (of brain)
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › with › Lewy bodies
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › with › Parkinsonism
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › with › Parkinson's disease
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › frontal (lobe)
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › frontotemporal
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › frontotemporal › specified NEC
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › cerebral lipidoses
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › diseases specified elsewhere (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › epilepsy
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hepatolenticular degeneration
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › human immunodeficiency virus (HIV) disease
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › Huntington's disease or chorea
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hypercalcemia
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hypothyroidism, acquired
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hypothyroidism, acquired › due to iodine deficiency
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › multiple › sclerosis
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › neurosyphilis
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › neurosyphilis › juvenile
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › niacin deficiency
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › paralysis agitans
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › Parkinson's disease
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › pellagra
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › Pick's
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › polyarteritis nodosa
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › systemic lupus erythematosus
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › trypanosomiasis › African
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › vitamin B12 deficiency
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › Lewy body
• Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › paralytica, paralytic (syphilitic)
• Disease, diseased › Alzheimer's
• Disease, diseased › Alzheimer's › early onset
• Disease, diseased › Alzheimer's › late onset
• Disease, diseased › Alzheimer's › specified NEC
• Disease, diseased › Huntington's › with dementia
• Disease, diseased › Lewy body (dementia)
• Disease, diseased › Pick's
• Disease, diseased › Pick's › brain
• Disorder (of) › neurocognitive › major › in (due to) (other diseases classified elsewhere)
• Human › immunodeficiency virus (HIV) disease (infection) › dementia
• Huntington's disease or chorea › with dementia
• Parkinsonism (idiopathic) (primary) › dementia
• Pick's › cerebral atrophy
• Pick's › disease or syndrome (brain)
• Pick's › disease or syndrome (brain) › brain
• Pick's › syndrome › brain

Nearby codes

• F02 Dementia in other diseases classified elsewhere
• F02.8 Dementia in other diseases classified elsewhere, unspecified severity
• F02.80 Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety (this code)
• F02.81 Dementia in other diseases classified elsewhere, unspecified severity, with behavioral disturbance
• F02.811 Dementia in other diseases classified elsewhere, unspecified severity, with agitation
• F02.818 Dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance
• F02.82 Dementia in other diseases classified elsewhere, unspecified severity, with psychotic disturbance
• F02.83 Dementia in other diseases classified elsewhere, unspecified severity, with mood disturbance