DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

F02.80 diagnosis code · Billable code · FY2027

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

  • Billable
  • Not CC/MCC
  • HCC 127
  • POA reported

F02.80 ICD-10 code: a billable diagnosis code in FY2027, one of 24 billable codes in category F02.

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F01-F09 Mental disorders due to known physiological conditions (F01-F09)
  3. F02 Dementia in other diseases classified elsewhere
  4. F02.8 Dementia in other diseases classified elsewhere, unspecified severity
  5. F02.80 Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
CC / MCC
Neither
MS-DRG
884
HCC V28
127
POA
Reported
Code Editor
Manifestation
Index entries
49

Instructions

At F02.80

Inclusion terms

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

Notes that also apply

Includes from F02

  • Major neurocognitive disorder in other diseases classified elsewhere

Excludes1 from F02

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

Excludes2 from F02

  • dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97) F10 F19
  • vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-) F01.5 F01.A F01.B F01.C

Code first from F02

  • the underlying physiological condition, such as:
  • Alzheimer's (G30.-) G30
  • cerebral lipidosis (E75.4) E75.4
  • Creutzfeldt-Jakob disease (A81.0-) A81.0
  • epilepsy and recurrent seizures (G40.-) G40
  • hepatolenticular degeneration (E83.01) E83.01
  • human immunodeficiency virus [HIV] disease (B20) B20
  • Huntington's disease (G10) G10
  • hypercalcemia (E83.52) E83.52
  • hypothyroidism, acquired (E00-E03.-) E00 E03
  • intoxications (T36-T65) T36 T65
  • Jakob-Creutzfeldt disease (A81.0-) A81.0
  • multiple sclerosis (G35-) G35
  • neurocognitive disorder with Lewy bodies (G31.83) G31.83
  • neurosyphilis (A52.17) A52.17
  • niacin deficiency [pellagra] (E52) E52
  • other frontotemporal neurocognitive disorder (G31.09) G31.09
  • Parkinson's disease (G20.-) G20
  • Pick's disease (G31.01) G31.01
  • polyarteritis nodosa (M30.0) M30.0
  • prion disease (A81.9) A81.9
  • systemic lupus erythematosus (M32.-) M32
  • traumatic brain injury (S06.-) S06
  • trypanosomiasis (B56.-, B57.-) B56 B57
  • vitamin B deficiency (E53.8) E53.8

Block F01-F09 instructions (Notes 1): printed on the block page.

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.

Index entries

  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)paralytica, paralytic (syphilitic) → A52.17 [F02.80]
  • Huntington's disease or choreawith dementia → G10 [F02.80]
  • Parkinsonism (idiopathic) (primary)dementia → G20.C [F02.80]
  • Disease, diseasedAlzheimer's → G30.9 [F02.80]
  • Aphasia (amnestic) (global) (nominal) (semantic) (syntactic)primary progressive → G31.01 [F02.80]
  • Aphasia (amnestic) (global) (nominal) (semantic) (syntactic)progressive isolated → G31.01 [F02.80]
  • Disease, diseasedPick's → G31.01 [F02.80]
  • Pick'scerebral atrophy → G31.01 [F02.80]
  • Pick'sdisease or syndrome (brain) → G31.01 [F02.80]
  • Atrophy, atrophic (of)sclerosis, lobar (of brain) → G31.09 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)frontal (lobe) → G31.09 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)frontotemporal → G31.09 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)Lewy body → G31.83 [F02.80]
  • Disease, diseasedLewy body (dementia) → G31.83 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)neurosyphilis → A52.17 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)human immunodeficiency virus (HIV) disease → B20 [F02.80]
  • Humanimmunodeficiency virus (HIV) disease (infection)dementia → B20 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)hypothyroidism, acquired → E03.9 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)niacin deficiency → E52 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)pellagra → E52 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)vitamin B12 deficiency → E53.8 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)cerebral lipidoses → E75.- [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)hepatolenticular degeneration → E83.01 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)hypercalcemia → E83.52 [F02.80]
  • 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) → F02.80
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)Huntington's disease or chorea → G10 [F02.80]
  • Disease, diseasedHuntington'swith dementia → G10 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)withParkinson's disease → G20.A1 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)Parkinson's disease → G20.A1 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)withParkinsonism → G20.C [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)paralysis agitans → G20.C [F02.80]
  • Disease, diseasedAlzheimer'searly onset → G30.0 [F02.80]
  • Disease, diseasedAlzheimer'slate onset → G30.1 [F02.80]
  • Disease, diseasedAlzheimer'sspecified NEC → G30.8 [F02.80]
  • Atrophy, atrophic (of)brain (cortex) (progressive)frontotemporal circumscribed → G31.01 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)Pick's → G31.01 [F02.80]
  • Disease, diseasedPick'sbrain → G31.01 [F02.80]
  • Pick'sdisease or syndrome (brain)brain → G31.01 [F02.80]
  • Pick'ssyndromebrain → G31.01 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)frontotemporalspecified NEC → G31.09 [F02.80]

9 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for F02.80
CC / MCCNeither
Appendix BMDC 19 Mental Diseases and Disorders, MS-DRG 884 (Organic Disturbances and Intellectual Disability…)
Code EditorManifestation code: not allowed as principal diagnosis
POAReported
HCC V28HCC 127 Dementia, Mild or Unspecified

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy