All ICD10 Codes

G44.1

Billable
ChapterG00–G99
Ranksubcategory
Official Description

Vascular headache, not elsewhere classified

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • cluster headache (G44.0)
  • complicated headache syndromes (G44.5-)
  • drug-induced headache (G44.4-)
  • migraine (G43.-)
  • other specified headache syndromes (G44.8-)
  • post-traumatic headache (G44.3-)
  • tension-type headache (G44.2-)
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
G44.1Vascular headache, not elsewhere classifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G44.1:

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

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 102
Headaches with MCC
DRG 103
Headaches without MCC

Cross Reference

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