G44.21
⚠ Non-billable (Header)Episodic tension-type headache
Diseases of the nervous system (G00-G99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for G44.21
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CodeG44.21
BillableNo — Header code
ParentG44.2
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes2
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)