2025 ICD-10-CM Diagnosis Code F04

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Amnestic disorder due to known physiological condition

  • F04 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM F04 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of F04 – other international versions of ICD-10 F04 may differ.

Applicable To

  • Korsakov’s psychosis or syndrome, nonalcoholic

Code First

  • the underlying physiological condition

Type 1 Excludes

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

Type 2 Excludes

  • 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)

The following code(s) above F04 contain annotation back-references

 that may be applicable to F04:

  • F01-F99  Mental, Behavioral and Neurodevelopmental disorders
  • F01-F09  Mental disorders due to known physiological conditions

Approximate Synonyms

  • Amnesia due to a general medical condition
  • Amnestic disorder due to medical disorder
  • Amnestic syndrome, confabulatory
  • Confabulation
  • Confabulatory amnestic disorder
  • Korsakoff syndrome, nonalcoholic
  • Non-alcoholic korsakoff’s psychosis
  • Nonalcoholic korsakoff syndrome

ICD-10-CM F04 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 884 Organic disturbances and intellectual disability

Convert F04 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Code annotations containing back-references to F04:

  • Type 1 Excludes: R41.3
  • Type 2 Excludes: F44.0

Diagnosis Index entries containing back-references to F04:

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