Is ICD-10-CM code F04 billable?

Yes, F04 (Amnestic disorder due to known physiological condition) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2026.

What chapter does ICD-10-CM code F04 belong to?

F04 belongs to Chapter 5 of the ICD-10-CM tabular list: F01–F99 (Mental, Behavioral and Neurodevelopmental Disorders).

F04Billable

Amnestic disorder due to known physiological condition

Mental, Behavioral and Neurodevelopmental Disorders·Mental disorders due to known physiological conditions (F01-F09)·category·FY 2026

CH5 Parent Instructions

Includes

disorders of psychological development

Excludes2(Not included here. Code separately if applicable.)

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Instructional Notes

Includes

Korsakov's psychosis or syndrome, nonalcoholic

Excludes1(Not coded here. Use a different code.)

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

Excludes2(Not included here. Code separately if applicable.)

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

Clinical Hierarchy

BillableHas subcodes

CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

F01-F09Mental disorders due to known physiological conditions (F01-F09)

F04Amnestic disorder due to known physiological conditionBillable

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 884

Organic Disturbances and Intellectual Disability