Short answer · Medically reviewed summary · Last updated: 2026-05-08

The primary ICD-10 code for Migraine is G43, which encompasses various sub-classifications depending on the presence of aura or complications, while the legacy ICD-9-CM code is 346. These diagnostic codes are essential for healthcare providers to document the clinical severity and specific presentation of Migraine for insurance and medical record purposes. How are Migraine diagnostic codes structured? In clinical practice, the G43 category for Migraine in ICD-10 is highly specific.

3 people with Migraine have shared their first-person experience on this question at DiseaseMaps.

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ICD10 code of Migraine and ICD9 code

ICD-10 and ICD-9 codes for Migraine, with classification details for clinicians, coders and patients.

ICD9 and ICD10 codes of Migraine

The primary ICD-10 code for Migraine is G43, which encompasses various sub-classifications depending on the presence of aura or complications, while the legacy ICD-9-CM code is 346. These diagnostic codes are essential for healthcare providers to document the clinical severity and specific presentation of Migraine for insurance and medical record purposes.



How are Migraine diagnostic codes structured?


In clinical practice, the G43 category for Migraine in ICD-10 is highly specific. It distinguishes between Migraine without aura (G43.0), Migraine with aura (G43.1), and other specified forms like chronic Migraine (G43.7). Using the correct ICD-10 code ensures that the unique neurological burden of Migraine is accurately captured, which is vital for accessing appropriate treatments and specialized neurological care.



Why are these codes important for Migraine patients?


Accurate coding is more than just administrative paperwork; it helps clinicians track the progression of your Migraine symptoms over time. For the 223 members of the DiseaseMaps community currently managing Migraine, these codes facilitate communication between primary care doctors and headache specialists. Precise coding helps justify the use of specific preventive therapies, such as CGRP inhibitors or Botox, which are often reserved for patients with a documented history of chronic Migraine.



What are the common clinical classifications?


When your physician assigns an ICD-10 code for Migraine, they are likely choosing from these common categories:



  • G43.0: Migraine without aura (common migraine).

  • G43.1: Migraine with aura (classic migraine).

  • G43.7: Chronic migraine without aura.

  • G43.A: Cyclical vomiting, in migraine-related disorders.



Next steps



  • Review your medical records to ensure your physician has documented the specific subtype of your Migraine.

  • Keep a detailed headache diary to help your neurologist apply the most accurate ICD-10 diagnostic code.

  • Connect with the 223 members of the DiseaseMaps community to share experiences and management strategies for living with Migraine.

  • Consult with a board-certified headache specialist or neurologist to discuss if your current treatment plan aligns with your specific Migraine diagnosis.



Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment.



References



  • World Health Organization (WHO) ICD-10 Version: 2019 (G43 Migraine).

  • American Migraine Foundation: Understanding Diagnostic Criteria.

  • NIH National Institute of Neurological Disorders and Stroke (NINDS): Migraine Information Page.

  • International Headache Society (IHS): The International Classification of Headache Disorders (ICHD-3).

Author: DiseaseMaps Editorial Team
Reviewed against authoritative medical sources (NIH GARD, Orphanet, OMIM)
Last updated: 2026-05-08
Sources cited: World Health Organization (WHO) ICD-10 Version: 2019 (G43 Migraine). · American Migraine Foundation: Understanding Diagnostic Criteria. · NIH National Institute of Neurological Disorders and Stroke (NINDS): Migraine Information Page. · International Headache Society (IHS): The International Classification of Headache Disorders (ICHD-3).
Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
4 answers
It’s the codes or classification of the different type of migraine

Posted Sep 28, 2017 by Catherine 2050
G43 is the basic code. There are others more specific. ICD10

346.7 is the basic Chronic code. There are others more specific. ICD9

Posted Aug 21, 2021 by Debi 2500
Translated from spanish Improve translation
This disease still has no codes ICD9 ICD10

Posted Nov 14, 2017 by Alejandro 2200

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