ICD-10-CM 2027
ICD-10 code for Korsakoff syndrome
From the official ICD-10-CM alphabetic index entry “Syndrome › Korsakoff (-Wernicke) (nonalcoholic)”. Page updated September 29, 2026.
About coding Korsakoff syndrome
The ICD-10-CM code for Korsakoff syndrome is F04 (Amnestic disorder due to known physiological condition). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F04.
Don't report F04 together with the conditions in its Excludes1 note: amnesia NOS (R41.3), anterograde amnesia (R41.1), dissociative amnesia (F44.0) and retrograde amnesia (R41.2).
The conditions in its Excludes2 note aren't part of F04, but may be coded alongside it if the patient has both: alcohol-induced or unspecified Korsakov's syndrome (F10.26, F10.96) and Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96).
Code first: the underlying physiological condition.
More specific Korsakoff syndrome codes (official index)
Don't confuse with (Excludes1 for F04)
Common questions about Korsakoff syndrome ICD-10 codes
What is the ICD-10 code for Korsakoff syndrome?
- F04 — Amnestic disorder due to known physiological condition. More specific codes apply when the documentation supports them: F10.9, F10.2.
What is the ICD-10 code for alcoholic korsakoff syndrome?
- F10.9 — Alcohol use, unspecified (header code; choose a more specific subcode).
Is F04 billable?
- Yes. F04 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F04 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F04 as a principal diagnosis.
Is F04 a CC or MCC?
- No. F04 is neither a CC nor an MCC under MS-DRG v44.0.