G44.84 (Primary exertional headache) compared with G50.1 (Atypical facial pain), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“atypical facial pain (G50.1)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. G44.84 carries an Excludes2 note covering G50.1: “atypical facial pain (G50.1)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| G44.84Primary exertional headache | G50.1Atypical facial pain | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Primary exertional headache is a billable ICD-10-CM diagnosis code (G44.84). | Atypical facial pain is a billable ICD-10-CM diagnosis code (G50.1). |
| Includes | — | disorders of 5th cranial nerve |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources