G44.59

✓ Billable

Other complicated headache syndrome

Diseases of the nervous system (G00-G99)

✅ No additional coding notes for G44.59

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Code Information

CodeG44.59

BillableYes

ParentG44.5

CategoryDiseases of the nervous system (G00-G99)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)