G50.0 vs R51
G50.0 (Trigeminal neuralgia) compared with R51 (Headache), 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. R51 carries an Excludes2 note covering G50.0: “trigeminal neuralgia (G50.0)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| G50.0Trigeminal neuralgia | R51Headache | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Trigeminal neuralgia is a billable ICD-10-CM diagnosis code (G50.0). | Headache is a non-billable ICD-10-CM category code (R51). |
| Includes | disorders of 5th cranial nerve Syndrome of paroxysmal facial pain Tic douloureux | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources