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

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
Short Description
Dementia in other diseases classified elsewhere
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F02: its own notes plus those printed at 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.

On F02 itself
  • 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

Excludes1

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

  • 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.

On F02 itself
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.

  • 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, its category, or a range that includes it.

Applicable To 1

These notes mention F02.

  • 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: 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.-)
  • G31.84 Mild cognitive impairment of uncertain or unknown etiology
    dementia (F01.-, F02.-, F03.-)

Excludes2 3

These codes carry an Excludes2 note naming F02: 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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F02Overview

What is the ICD-10 code for dementia in other diseases classified elsewhere?

F02 is the ICD-10-CM category for dementia in other diseases classified elsewhere, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

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

Not as a rule. The Excludes1 note on F02 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?

The Code First note 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.