2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 884. 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.

For Medicare Advantage risk adjustment, F02.80 maps to CMS-HCC Category 127 (Dementia, Mild or Unspecified) under the V28 model, adding a risk factor of about 0.341 for a community, non-dual, aged beneficiary in payment year 2027.

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.

Medicare Risk Adjustment (HCC)Billing

F02.80 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.

CMS-HCC V28 Category (Payment Model)
HCC 127— Dementia, Mild or Unspecified
Payment HCC · PY 2027 one of 65 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+0.341
community, non-dual, aged · ranges 0.000–0.438 across segments
Hierarchy
Superseded by HCC 125 and HCC 126
a more severe related category takes the payment when both are reported
Prior Model (CMS-HCC V24)
HCC 52
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
ESRD (V21): HCC 52 · ESRD (V24): HCC 52
ESRD V21 weights: 0.045 dialysis, 0.000–0.328 functioning graft · ESRD V24 weights: 0.042 dialysis, 0.000–0.399 functioning graft
Part D (RxHCC)
RxHCC 112 — Dementia, Except Alzheimer's Disease
also risk-adjusts in the Part D prescription drug model (V08)

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F02.80: its own notes plus those printed at F02, block F01-F09, and Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From F02 Dementia in other diseases classified elsewhere applies to 24 codes
  • Major neurocognitive disorder in other diseases classified elsewhere
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

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

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From F02 Dementia in other diseases classified elsewhere applies to 24 codes
  • mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From F02 Dementia in other diseases classified elsewhere applies to 24 codes
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Code First

The underlying condition named in the note is sequenced before this code.

From F02 Dementia in other diseases classified elsewhere applies to 24 codes
  • the underlying physiological condition, such as:
  • Alzheimer's (G30.-)
  • cerebral lipidosis (E75.4)
  • Creutzfeldt-Jakob disease (A81.0-)
  • epilepsy and recurrent seizures (G40.-)
  • 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 (G31.09)
  • 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)

Notes

General instructions on how these codes are used.

From Block F01-F09 Mental disorders due to known physiological conditions applies to 91 codes
  • This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F02.80, its category, or a range that includes it.

Applicable To 1

These notes mention F02.80.

  • O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium
    Conditions in F01-F09, F20-F52 and F54-F99 names F01-F09, which includes this code

Excludes1 2

These codes carry an Excludes1 note naming F02.80: they are not reported together with it, unless the two conditions are unrelated.

  • F06.7 Mild neurocognitive disorder due to known physiological condition
    dementia (F01.-, F02.-, F03.-) names F02.-, which includes this code
  • G31.84 Mild cognitive impairment of uncertain or unknown etiology
    dementia (F01.-, F02.-, F03.-) names F02.-, which includes this code

Excludes2 3

These codes carry an Excludes2 note naming F02.80: its condition is not part of those codes, and both may be reported when the patient has both.

  • F06 Other mental disorders due to known physiological condition
    dementia as classified in F01-F02 names F01-F02, which includes this code
  • F63.1 Pyromania
    mental disorders due to known physiological condition (F01-F09) names F01-F09, which includes this code
  • F63.2 Kleptomania
    stealing in mental disorders due to known physiological condition (F01-F09) names F01-F09, which includes this code

Use Additional Code 5

These codes say to use an additional code from the note, and F02.80 is one of the codes named.

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

Code Also 1

These codes say F02.80 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • G40.C Lafora progressive myoclonus epilepsy
    if applicable, associated conditions such as dementia (F02.8-) names F02.8-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

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

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 2024–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does F02.80 group to?

On inpatient claims, dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety maps to MS-DRG 884 (organic Disturbances and Intellectual Disability), which carries a relative weight of 1.5998. Higher weights mean higher Medicare reimbursement.

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.

Can F02.80 be reported with a code from F06.7?

Not as a rule. The Excludes1 note at F02, which applies to F02.80, lists "mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is coded first with F02.80?

The Code First note at F02, which applies to F02.80, reads: the underlying physiological condition, such as: Alzheimer's (G30.-); cerebral lipidosis (E75.4); Creutzfeldt-Jakob disease (A81.0-); epilepsy and recurrent seizures (G40.-); hepatolenticular degeneration (E83.01); and 19 more listed in the Instructional Notes section. When one of these applies, it is sequenced before F02.80.

What HCC is F02.80?

F02.80 (dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) maps to CMS-HCC Category 127 (Dementia, Mild or Unspecified), commonly written as HCC 127, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 52 under the retired V24 model. It also maps in the ESRD (V21) and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 112.

Does F02.80 risk-adjust for Medicare Advantage payment?

Yes. When documented and reported on a Medicare Advantage encounter, F02.80 adds a risk adjustment factor of about 0.341 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.000 to 0.438 depending on the payment segment). A more severe related category (HCC 125 and HCC 126) supersedes it when both are reported. See the full factor table on the HCC 127 category page.