2026 ICD-10-CM Diagnosis Code F02.80Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

ICD-10-CM Codes›F01–F99›F01-F09›F02

ICD-10-CM F02.80
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F02.80 is a billable ICD-10-CM diagnosis code for dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurocognitive disorders.

Code Identity

ICD-10-CM Code
F02.80
Billable Status
Yes — Valid for Submission
Code Describes
Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
Short Description
Dem in oth dis classd elswhr,unsp sev,w/o beh/psych/mood/anx
Parent Code
F02.8
Dementia in other diseases classified elsewhere, unspecified severity

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF01-F09Mental disorders due to known physiological conditions
CategoryF02Dementia in other diseases classified elsewhere
This CodeF02.80Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

Code EditsBilling

Medicare Code Editor checks that affect claim validity for F02.80.

Manifestation diagnoses
Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Alzheimer's disease
  • Alzheimer's disease with delirium
  • Alzheimer's disease with delusions
  • Alzheimer's disease with psychosis
  • Amyotrophic lateral sclerosis plus syndrome
  • Amyotrophic lateral sclerosis with dementia
  • Amyotrophic lateral sclerosis with frontotemporal dementia
  • Amyotrophic lateral sclerosis, parkinsonism, dementia complex
  • Amyotrophic lateral sclerosis, parkinsonism, dementia complex of Kii Peninsula
  • Amyotrophic lateral sclerosis, parkinsonism, dementia complex of West New Guinea
  • Autosomal dominant Alzheimer disease due to mutation of amyloid precursor protein
  • Autosomal dominant Alzheimer disease due to mutation of presenilin 1
  • Autosomal dominant Alzheimer disease due to mutation of presenilin 2
  • Behavioral variant of frontotemporal dementia
  • Cerebral degeneration presenting primarily with dementia
  • Dementia associated with another disease
  • Dementia associated with cerebral anoxia
  • Dementia associated with cerebral lipidosis
  • Dementia associated with multiple sclerosis
  • Dementia associated with neurosyphilis
  • Dementia associated with normal pressure hydrocephalus
  • Dementia associated with Parkinson's Disease
  • Dementia associated with viral encephalitis
  • Dementia co-occurrent and due to neurocysticercosis
  • Dementia co-occurrent with human immunodeficiency virus infection
  • Dementia due to acquired hypothyroidism
  • Dementia due to atypical pantothenate kinase associated neurodegeneration
  • Dementia due to autoimmune encephalitis
  • Dementia due to Behcet syndrome
  • Dementia due to celiac disease
  • Dementia due to chromosomal anomaly
  • Dementia due to chronic intracranial subdural hematoma
  • Dementia due to classical pantothenate kinase associated neurodegeneration
  • Dementia due to cobalamin deficiency
  • Dementia due to Creutzfeldt Jakob disease
  • Dementia due to deficiency of folic acid
  • Dementia due to disorder of central nervous system
  • Dementia due to familial Creutzfeldt-Jakob disease
  • Dementia due to fatal familial insomnia
  • Dementia due to fragile X syndrome
  • Dementia due to genetic disease
  • Dementia due to Gerstmann Straussler Scheinker syndrome
  • Dementia due to Hashimoto encephalopathy
  • Dementia due to hemorrhagic cerebral infarction due to hypertension
  • Dementia due to hepatic failure
  • Dementia due to herpes encephalitis
  • Dementia due to hypercalcemia
  • Dementia due to hypertensive encephalopathy
  • Dementia due to iatrogenic Creutzfeldt-Jakob disease
  • Dementia due to infectious disease
  • Dementia due to iron deficiency
  • Dementia due to kuru
  • Dementia due to leukodystrophy
  • Dementia due to Lewy body disease
  • Dementia due to Lyme disease
  • Dementia due to metabolic abnormality
  • Dementia due to metastatic malignant neoplasm to brain
  • Dementia due to multiple system atrophy
  • Dementia due to neurofilament inclusion body disease
  • Dementia due to niacin deficiency
  • Dementia due to nutritional deficiency
  • Dementia due to obstructive hydrocephalus
  • Dementia due to paraneoplastic encephalitis
  • Dementia due to Parkinson's disease
  • Dementia due to pellagra
  • Dementia due to Pick's disease
  • Dementia due to polyarteritis nodosa
  • Dementia due to primary malignant neoplasm of brain
  • Dementia due to prion disease
  • Dementia due to progressive subcortical gliosis
  • Dementia due to renal failure
  • Dementia due to Rett syndrome
  • Dementia due to rheumatological disease
  • Dementia due to sporadic Creutzfeldt-Jakob disease
  • Dementia due to subacute sclerosing panencephalitis
  • Dementia due to systemic lupus erythematosus
  • Dementia due to thiamine deficiency
  • Dementia due to trypanosomiasis
  • Dementia due to variant Creutzfeldt-Jakob disease
  • Dementia due to vitamin E deficiency
  • Dementia due to Whipple disease
  • Dementia due to Wilson disease
  • Dementia in remission
  • Dementia with AIDS
  • Dialysis dementia
  • Diffuse Lewy body disease with spongiform cortical change
  • Disorder of autonomic nervous system due to senile dementia of Lewy body type
  • Early onset dementia due to Lewy body disease
  • Encephalopathy due to folate deficiency
  • Encephalopathy due to vitamin B12 deficiency
  • Encephalopathy with AIDS
  • Epilepsy co-occurrent and due to dementia
  • Familial Alzheimer's disease of early onset
  • Familial Alzheimer's disease of late onset
  • Familial multiple system tauopathy
  • Frontotemporal dementia due to C9orf72 mutation
  • Frontotemporal dementia due to FUS mutation
  • Frontotemporal dementia due to TARDBP mutation
  • Frontotemporal dementia due to VCP mutation
  • Frontotemporal dementia with parkinsonism-17
  • GRN-related frontotemporal dementia
  • Inclusion body myopathy with early-onset Paget disease and frontotemporal dementia
  • Late onset dementia due to Lewy body disease
  • Lewy body disease
  • Logopenic progressive aphasia
  • Myopathy with cytoplasmic inclusions
  • Neuropsychiatric disorder due to systemic lupus erythematosus
  • Non-familial Alzheimer's disease of early onset
  • Non-familial Alzheimer's disease of late onset
  • Organic dementia with AIDS
  • Parkinsonism with dementia of Guadeloupe
  • Presenile dementia co-occurrent with human immunodeficiency virus infection
  • Presenile dementia with AIDS
  • Presenile dementia with depression
  • Primary degenerative dementia of the Alzheimer type, presenile onset
  • Primary degenerative dementia of the Alzheimer type, presenile onset in remission
  • Primary degenerative dementia of the Alzheimer type, presenile onset, uncomplicated
  • Primary degenerative dementia of the Alzheimer type, presenile onset, with delusions
  • Primary degenerative dementia of the Alzheimer type, presenile onset, with depression
  • Primary degenerative dementia of the Alzheimer type, senile onset
  • Primary degenerative dementia of the Alzheimer type, senile onset in remission
  • Primary degenerative dementia of the Alzheimer type, senile onset, uncomplicated
  • Primary degenerative dementia of the Alzheimer type, senile onset, with depression
  • Primary progressive non fluent aphasia
  • PRKAR1B-related neurodegenerative dementia with intermediate filaments
  • Progressive aphasia
  • Right temporal lobar atrophy
  • Senile dementia with depression
  • Senile dementia with depressive or paranoid features

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

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

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • 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)
    • Disorder(of)
      • neurocognitive
        • major
          • in (due to) (other diseases classified elsewhere)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS011
Neurocognitive disorders
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Lewy Body Disease

    a neurodegenerative disease characterized by dementia, mild parkinsonism, and fluctuations in attention and alertness. the neuropsychiatric manifestations tend to precede the onset of bradykinesia, muscle rigidity, and other extrapyramidal signs. delusions and visual hallucinations are relatively frequent in this condition. histologic examination reveals lewy bodies in the cerebral cortex and brain stem. senile plaques and other pathologic features characteristic of alzheimer disease may also be present. (from neurology 1997;48:376-380; neurology 1996;47:1113-1124)

Patient EducationClinical

Dementia

Dementia is a loss of mental functions that is severe enough to affect your daily life and activities. These functions include:

The full article covers:

  • What is dementia?
  • What are the types of dementia?
  • Who is at risk for dementia?
  • What are the symptoms of dementia?
  • How is dementia diagnosed?
  • What are the treatments for dementia?
  • Can dementia be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F02.80 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
294.10 Dementia w/o behav dist
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2022No changes
FY 2023RevisedCode revised
FY 2024–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F02.80Overview

Is F02.80 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can F02.80 be a principal diagnosis?

No. This is a manifestation code: dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.

What is the ICD-9 equivalent of F02.80?

Under the General Equivalence Mappings, dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety converts to ICD-9-CM 294.10 (dementia w/o behav dist). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.