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Alphabetic Index and Tabular path
HCC Buddy public API, FY2026 Apr updateSource load source requiredSource year 2026Updated 2026-04-01

Index trail

Amnestic disorder due to known physiological condition

See Tabular List: F04

F04, Amnestic disorder due to known physiological condition

Selected code, source checked for the selected effective period

Commonly confused codes

official source

Not listed for this effective period.

Code details and official notes

F04

Amnestic disorder due to known physiological condition

Open the shareable code page for F04→
billable

Includes

official source
  • Korsakov's psychosis or syndrome, nonalcoholic

Excludes 1

official source
  • amnesia NOS (R41.3)
  • anterograde amnesia (R41.1)
  • dissociative amnesia (F44.0)
  • retrograde amnesia (R41.2)

Excludes 2

official source
  • alcohol-induced or unspecified Korsakov's syndrome (F10.26, F10.96)
  • Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96)

Code First

official source
  • the underlying physiological condition

Use Additional

official source

Not listed for this effective period.

Code Also

official source

Not listed for this effective period.

7th character

official source

Not listed for this code in the selected Tabular payload.

Placeholder X

official source

Not listed for this code in the selected Tabular payload.

Laterality

official source

No laterality instruction is listed for this code in the selected Tabular payload.

Effective period

source required
  • FY2026 Apr update
  • Source year 2026
  • Updated 2026-04-01
  • HCC Buddy public API
HCC Buddy
HCC Buddy
Alphabetic Index and Tabular path
HCC Buddy public API, FY2026 Apr updateSource load source requiredSource year 2026Updated 2026-04-01

Index trail

Amnestic disorder due to known physiological condition

See Tabular List: F04

F04, Amnestic disorder due to known physiological condition

Selected code, source checked for the selected effective period

Commonly confused codes

official source

Not listed for this effective period.

Code details and official notes

F04

Amnestic disorder due to known physiological condition

Open the shareable code page for F04→
billable

Includes

official source
  • Korsakov's psychosis or syndrome, nonalcoholic

Excludes 1

official source
  • amnesia NOS (R41.3)
  • anterograde amnesia (R41.1)
  • dissociative amnesia (F44.0)
  • retrograde amnesia (R41.2)

Excludes 2

official source
  • alcohol-induced or unspecified Korsakov's syndrome (F10.26, F10.96)
  • Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96)

Code First

official source
  • the underlying physiological condition

Use Additional

official source

Not listed for this effective period.

Code Also

official source

Not listed for this effective period.

7th character

official source

Not listed for this code in the selected Tabular payload.

Placeholder X

official source

Not listed for this code in the selected Tabular payload.

Laterality

official source

No laterality instruction is listed for this code in the selected Tabular payload.

Effective period

source required
  • FY2026 Apr update
  • Source year 2026
  • Updated 2026-04-01
  • HCC Buddy public API
HCC Buddy Insights

HCC Mapping

V28 source requiredHCC 52 Dementia Without Complication (V24)HCC 112 Dementia and Other Specified Brain Disorders (RxHCC)HCC 52 Dementia Without Complication (ESRD/PACE)HHS-HCC source required or member context needed for selected effective period (HHS-HCC)

RAF Value

V28 RAF source requiredV24: RAF: 0.346RxHCC: RAF: Not separately weightedESRD/PACE: RAF: 0.042HHS-HCC RAF source required

Model Period

FY2026 Apr update

Source

source required

Audit Caution

Close codes need documentation support before selection. Do not assume relationships.
Reviewed by the HCC Buddy Coding Team

HCC Buddy workflow band

HCC mapping, RAF, MEAT, source trail, and audit caution stay in view.

MEAT supportaudit cautionsource required

V24

HCC 52

Dementia Without Complication

RAF: 0.346

RxHCC

RxHCC 112

Dementia and Other Specified Brain Disorders

RAF: Not separately weighted

ESRD/PACE

HCC 52

Dementia Without Complication

RAF: 0.042

HHS-HCC

source required

HHS-HCC source required or member context needed for selected effective period

RAF: source required

MEAT checklist

Reviewed by the HCC Buddy Coding Team

Monitor, Evaluate, Assess, or Treat must be supported in the provider note.

HCC Buddy guidance, not official ICD-10-CM text.

Audit caution

Reviewed by the HCC Buddy Coding Team

Close codes need documentation support before selection. Do not assume relationships.

HCC Buddy guidance, not official ICD-10-CM text.

Reviewer sign-off

Reviewed by the HCC Buddy Coding Team

MEAT, documentation support, audit cautions, and close-code guidance are reviewed and approved for this effective period.

HCC Buddy enrichment is separate from official source text.

Last updated: April 1, 2026 · Not a substitute for official coding guidelines. No PHI or patient data.
HCC Buddy Code Card
FY 2026 Apr update
F04Billable

Amnestic disorder due to known physiological condition

CMS-HCC V24

HCC 52

RAF 0.346

RxHCC

RxHCC 112

RAF Not separately weighted

ESRD/PACE

HCC 52

RAF 0.042

Reviewed by the HCC Buddy Coding TeamFY2026 Apr update

Code

F04

V28 HCC

Not mapped

RAF

source required

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