G43 is the ICD-10 code for Migraine. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block G40–G47 (Episodic and paroxysmal disorders) in Chapter VI, Diseases of the nervous system.
- Code type
- Category (3 characters)
- Chapter
- VI · G00–G99
- Classification
- WHO ICD-10, 2019 version
What G43 excludes
Conditions that look similar but belong under another code.
- headache NOS R51
Coding notes
- Use additional external cause code (Chapter XX), if desired, to identify drug, if drug-induced.
Subcodes of G43
G43 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
G43Migrän
DG43Migræne
G43Migreeni
G43Migräne
G43Migraine
G43migraine
Listed through more specific codes:
- G43.A0Cyclical vomiting, in migraine, not intractable
- G43.A1Cyclical vomiting, in migraine, intractable
- G43.B0Ophthalmoplegic migraine, not intractable
- G43.B1Ophthalmoplegic migraine, intractable
- G43.C0Periodic headache syndromes in child or adult, not intractable
- G43.C1Periodic headache syndromes in child or adult, intractable
- G43.D0Abdominal migraine, not intractable
- G43.D1Abdominal migraine, intractable
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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