F04 vs F13.26
F04 (Amnestic disorder due to known physiological condition) compared with F13.26 (Sedative, hypnotic or anxiolytic dependence with sedative, hypnotic or anxiolytic-induced persisting amnestic disorder), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. F04 carries an Excludes2 note covering F13.26: “Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| F04Amnestic disorder due to known physiological condition | F13.26Sedative, hypnotic or anxiolytic dependence with sedative, hypnotic or anxiolytic-induced persisting amnestic disorder | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) |
| Definition | Amnestic disorder due to known physiological condition is a billable ICD-10-CM diagnosis code (F04). | Sedative, hypnotic or anxiolytic dependence with sedative, hypnotic or anxiolytic-induced persisting amnestic disorder is a billable ICD-10-CM diagnosis code (F13.26). |
| Includes | Korsakov's psychosis or syndrome, nonalcoholic | — |
| Code first | the underlying physiological condition | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources