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FY2027 ICD-10-CM reference

F02: Dementia in other diseases classified elsewhere

By the HCC Buddy Coding Team

The official ICD-10-CM descriptor is Dementia in other diseases classified elsewhere. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Nonbillable heading. Verified against the official FY2027 order file.

CMS-HCC V28

Not applicable to this nonbillable heading

CMS-HCC V24

Not applicable to this nonbillable heading

ESRD

Not applicable to this nonbillable heading

PACE

Not applicable to this nonbillable heading

RxHCC

Not applicable to this nonbillable heading

HHS-HCC

Not applicable to this nonbillable heading

More specific FY2027 codes

FY2027 Tabular instructions

Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.

Includes

disorders of psychological development

Source: F01-F99 (chapter, inherited).

Excludes2

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Source: F01-F99 (chapter, inherited).

Instructional note

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: F01-F09 (section, inherited).

Includes

Major neurocognitive disorder in other diseases classified elsewhere

Source: F02 (category, direct).

Code first

the underlying physiological condition, such as:

Source: F02 (category, direct).

Code first

Alzheimer's (G30.-)

Source: F02 (category, direct).

Code first

cerebral lipidosis (E75.4)

Source: F02 (category, direct).

Code first

Creutzfeldt-Jakob disease (A81.0-)

Source: F02 (category, direct).

Code first

epilepsy and recurrent seizures (G40.-)

Source: F02 (category, direct).

Code first

hepatolenticular degeneration (E83.01)

Source: F02 (category, direct).

Code first

human immunodeficiency virus [HIV] disease (B20)

Source: F02 (category, direct).

Code first

Huntington's disease (G10)

Source: F02 (category, direct).

Code first

hypercalcemia (E83.52)

Source: F02 (category, direct).

Code first

hypothyroidism, acquired (E00-E03.-)

Source: F02 (category, direct).

Code first

intoxications (T36-T65)

Source: F02 (category, direct).

Code first

Jakob-Creutzfeldt disease (A81.0-)

Source: F02 (category, direct).

Code first

multiple sclerosis (G35-)

Source: F02 (category, direct).

Code first

neurocognitive disorder with Lewy bodies (G31.83)

Source: F02 (category, direct).

Code first

neurosyphilis (A52.17)

Source: F02 (category, direct).

Code first

niacin deficiency [pellagra] (E52)

Source: F02 (category, direct).

Code first

other frontotemporal neurocognitive disorder (G31.09)

Source: F02 (category, direct).

Code first

Parkinson's disease (G20.-)

Source: F02 (category, direct).

Code first

Pick's disease (G31.01)

Source: F02 (category, direct).

Code first

polyarteritis nodosa (M30.0)

Source: F02 (category, direct).

Code first

prion disease (A81.9)

Source: F02 (category, direct).

Code first

systemic lupus erythematosus (M32.-)

Source: F02 (category, direct).

Code first

traumatic brain injury (S06.-)

Source: F02 (category, direct).

Code first

trypanosomiasis (B56.-, B57.-)

Source: F02 (category, direct).

Code first

vitamin B deficiency (E53.8)

Source: F02 (category, direct).

Excludes1

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

Source: F02 (category, direct).

Excludes2

dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)

Source: F02 (category, direct).

Excludes2

vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)

Source: F02 (category, direct).

Source: CMS FY2027 Tabular List and Alphabetic Index.

Open Tabular instructions and code details

Compare the FY2027 additions, removals and billable-status changes

What does F02 mean in FY2027?

The official ICD-10-CM descriptor is Dementia in other diseases classified elsewhere. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Is F02 billable in FY2027?

The FY2027 order file marks F02 as a nonbillable heading. Select a complete billable child code.

Does F02 map to an HCC?

Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.

Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.

Review the FY2026 April edition