All ICD10 Codes

G44.5

Non-Billable
ChapterG00–G99
Ranksubcategory
Official Description

Complicated headache syndromes

Use a more specific code (4 billable)
G44.51Hemicrania continuaG44.52New daily persistent headache (NDPH)G44.53Primary thunderclap headacheG44.59Other complicated headache syndrome
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).
General instructions are available for the parent sections:
View CH6 NotesView G44 Notes

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G40-G47Episodic and paroxysmal disorders (G40-G47)
G44Other headache syndromes
G44.5Complicated headache syndromesNot billable
G44.51Hemicrania continuaBillable
G44.52New daily persistent headache (NDPH)Billable
G44.53Primary thunderclap headacheBillable
G44.59Other complicated headache syndromeBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G44.5:

categoryG44
Other headache syndromes
View context instructions
chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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