F48.8 vs R55
F48.8 (Other specified nonpsychotic mental disorders) compared with R55 (Syncope and collapse), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. R55 carries an Excludes1 note covering F48.8: “psychogenic syncope (F48.8)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| F48.8Other specified nonpsychotic mental disorders | R55Syncope and collapse | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Other specified nonpsychotic mental disorders is a billable ICD-10-CM diagnosis code (F48.8). | Syncope and collapse is a billable ICD-10-CM diagnosis code (R55). |
| Includes | Dhat syndrome Neurasthenia Occupational neurosis, including writer's cramp Psychasthenia | Blackout Fainting Vasovagal attack |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources