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G43

⚠ Non-billable (Header)

Migraine

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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📋 Code Instructions

  • • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

❌ Excludes1

direct

Cannot be coded with G43

  • • lower half migraine (G44.00)

⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • headache NOS (R51.9)
  • • headache syndromes (G44.-)

Child Codes (13)

G43.0Migraine without auraG43.1Migraine with auraG43.4Hemiplegic migraineG43.5Persistent migraine aura without cerebral infarctionG43.6Persistent migraine aura with cerebral infarctionG43.7Chronic migraine without auraG43.8Other migraineG43.9Migraine, unspecifiedG43.ACyclical vomitingG43.BOphthalmoplegic migraineG43.CPeriodic headache syndromes in child or adultG43.DAbdominal migraineG43.EChronic migraine with aura

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Code Information

CodeG43
BillableNo — Header code
CategoryDiseases of the nervous system (G00-G99)
Excludes11 rule(s)
Excludes22 note(s)
Child codes13

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)