2026 ICD-10-CM Diagnosis Code F02Dementia in other diseases classified elsewhere

ICD-10-CM Codes›F01–F99›F01-F09›F02

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

F02 is a non-billable ICD-10-CM category code for dementia in other diseases classified elsewhere, so it cannot be submitted on claims. Use a more specific code from this category instead, such as F02.80, F02.811, F02.818, and F02.82.

Code Identity

ICD-10-CM Code
F02
Billable Status
No — Non-Billable Category
Code Describes
Dementia in other diseases classified elsewhere
Chapter
F01-F09
Mental disorders due to known physiological conditions

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF01-F09Mental disorders due to known physiological conditions
CategoryF02Dementia in other diseases classified elsewhere
This CodeF02Dementia in other diseases classified elsewhere

Specific Coding for Dementia in other diseases classified elsewhereOverview

Non-specific codes like F02 require more characters. Use one of these billable codes instead:

  • F02.8 for Dementia in other diseases classified elsewhere, unspecified severity

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

  • F02.81 for Dementia in other diseases classified elsewhere, unspecified severity, with behavioral disturbance

  • Use F02.82 for Dementia in other diseases classified elsewhere, unspecified severity, with psychotic disturbance

  • Use F02.83 for Dementia in other diseases classified elsewhere, unspecified severity, with mood disturbance

  • Use F02.84 for Dementia in other diseases classified elsewhere, unspecified severity, with anxiety

  • F02.A for Dementia in other diseases classified elsewhere, mild

  • Use F02.A0 for Dementia in other diseases classified elsewhere, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.A1 for Dementia in other diseases classified elsewhere, mild, with behavioral disturbance

  • Use F02.A2 for Dementia in other diseases classified elsewhere, mild, with psychotic disturbance

  • Use F02.A3 for Dementia in other diseases classified elsewhere, mild, with mood disturbance

  • Use F02.A4 for Dementia in other diseases classified elsewhere, mild, with anxiety

  • F02.B for Dementia in other diseases classified elsewhere, moderate

  • Use F02.B0 for Dementia in other diseases classified elsewhere, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.B1 for Dementia in other diseases classified elsewhere, moderate, with behavioral disturbance

  • Use F02.B2 for Dementia in other diseases classified elsewhere, moderate, with psychotic disturbance

  • Use F02.B3 for Dementia in other diseases classified elsewhere, moderate, with mood disturbance

  • Use F02.B4 for Dementia in other diseases classified elsewhere, moderate, with anxiety

  • F02.C for Dementia in other diseases classified elsewhere, severe

  • Use F02.C0 for Dementia in other diseases classified elsewhere, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

  • F02.C1 for Dementia in other diseases classified elsewhere, severe, with behavioral disturbance

  • Use F02.C2 for Dementia in other diseases classified elsewhere, severe, with psychotic disturbance

  • Use F02.C3 for Dementia in other diseases classified elsewhere, severe, with mood disturbance

  • Use F02.C4 for Dementia in other diseases classified elsewhere, severe, with anxiety

Tabular List NotesGuidance

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

Includes

  • Major neurocognitive disorder in other diseases classified elsewhere

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

Type 1 Excludes

  • mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance F06.7

Type 2 Excludes

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.

Code HistoryHistory

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

Questions About F02Overview

Is F02 (Dementia in other diseases classified elsewhere) a billable code?

No. This is a category header that groups the codes for dementia in other diseases classified elsewhere, and headers cannot be submitted on claims. Claims for dementia in other diseases classified elsewhere need a more specific code from this category, such as F02.80, F02.811, and F02.818.