F02.811 Dementia in other diseases classified elsewhere, unspecified severity, with agitation

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Dementia in other diseases classified elsewhere, unspecified severity, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
• Dementia in other diseases classified elsewhere, unspecified severity, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence
• Major neurocognitive disorder in other diseases classified elsewhere, unspecified severity, with aberrant motor behavior such as restlessness, rocking, pacing, or exit-seeking
• Major neurocognitive disorder in other diseases classified elsewhere, unspecified severity, with verbal or physical behaviors such as profanity, shouting, threatening, anger, aggression, combativeness, or violence

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 51

MS-DRG index

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

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 F02.811

Back-references to F02.81

• Use Additional: A81 Atypical virus infections of central nervous system ("dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)")
• Use Additional: G10 Huntington's disease ("dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)")
• Use Additional: G20 Parkinson's disease ("dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)")
• Use Additional: G30 Alzheimer's disease ("dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)")
• Use Additional: G31 Other degenerative diseases of nervous system, not elsewhere classified ("dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)")

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 F02.811

• 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) › with › aberrant motor behavior (exit-seeking) (pacing) (restlessness) (rocking)
• 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) › with › agitation
• 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) › with › verbal or physical behaviors (anger) (aggression) (combativeness) (profanity) (shouting) (threatening) (violence)

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
• 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 (this code)
• 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
• F02.84 Dementia in other diseases classified elsewhere, unspecified severity, with anxiety
• F02.A Dementia in other diseases classified elsewhere, mild