F04

ICD-10Billable

Amnestic disorder due to known physiological condition

Official ICD-10-CM descriptor (FY2026)

Amnestic disorder due to known physiological condition

F04 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Korsakov's psychosis or syndrome, nonalcoholic

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

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

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • 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

Sequence the underlying condition before this code.

  • the underlying physiological condition

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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