F04 – Amnestic disorder due to known physiological condition

ICD-10-CM 2027 diagnosis code · Mental disorders due to known physiological conditions

Billable code

ICD-10-CM code F04

Code: F04 (claims format: F04)
Description: Amnestic disorder due to known physiological condition
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F01-F09 Mental disorders due to known physiological conditions

Notes for F04

Applicable to:

Korsakov's psychosis or syndrome, nonalcoholic

Excludes1 (not coded here):

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

Excludes2 (not included here):

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:

the underlying physiological condition

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block F01-F09

Notes:

This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.

Index terms for F04

Entries in the ICD-10-CM alphabetic index that lead to this code:

Frequently asked questions

What is ICD-10 code F04?

F04 is the ICD-10-CM code for amnestic disorder due to known physiological condition, in the block F01-F09 (Mental disorders due to known physiological conditions).

Is F04 a billable code?

Yes. F04 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.