2026 ICD-10-CM Diagnosis Code G43.109Migraine with aura, not intractable, without status migrainosus

ICD-10-CM Codes›G00–G99›G40-G47›G43

ICD-10-CM G43.109
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G43.109 is a billable ICD-10-CM diagnosis code for migraine with aura, not intractable, without status migrainosus. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 102 through 103. Coders also document this condition as complicated migraine. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Headache; including migraine.

Code Identity

ICD-10-CM Code
G43.109
Billable Status
Yes — Valid for Submission
Code Describes
Migraine with aura, not intractable, without status migrainosus
Short Description
Migraine with aura, not intractable, w/o status migrainosus
Parent Code
G43.10
Migraine with aura, not intractable

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG40-G47Episodic and paroxysmal disorders
CategoryG43Migraine
This CodeG43.109Migraine with aura, not intractable, without status migrainosus

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Complicated migraine
  • Migraine aura without headache
  • Migraine with aura
  • Migraine with brainstem aura
  • Migraine with ischemic complication
  • Migraine with typical aura
  • Retinal migraine
  • Seizure due to migraine with aura

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Migraine with aura NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Migraine(idiopathic)
      • with aura (acute-onset) (prolonged) (typical) (without headache)
    • Migraine(idiopathic)
      • with aura (acute-onset) (prolonged) (typical) (without headache)
        • not intractable
    • Migraine(idiopathic)
      • with aura (acute-onset) (prolonged) (typical) (without headache)
        • not intractable
          • without status migrainosus
    • Migraine(idiopathic)
      • with aura (acute-onset) (prolonged) (typical) (without headache)
        • without mention of refractory migraine
    • Migraine(idiopathic)
      • with aura (acute-onset) (prolonged) (typical) (without headache)
        • without mention of refractory migraine
          • without status migrainosus
    • Migraine(idiopathic)
      • complicated

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS010
Headache; including migraine
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Migraine with Aura

    a subtype of migraine disorder, characterized by recurrent attacks of reversible neurological symptoms (aura) that precede or accompany the headache. aura may include a combination of sensory disturbances, such as blurred vision; hallucinations; vertigo; numbness; and difficulty in concentrating and speaking. aura is usually followed by features of the common migraine, such as photophobia; phonophobia; and nausea. (international classification of headache disorders, 2nd ed. cephalalgia 2004: suppl 1)

  • Migraine With Aura

    a migraine disorder characterized by episodes that are preceded by focal neurological symptoms.

Patient EducationClinical

Migraine

Migraines are a recurring type of headache. They cause moderate to severe pain that is throbbing or pulsing. The pain is often on one side of your head. You may also have other symptoms, such as nausea and weakness. You may be sensitive to light and sound.

The full article covers:

  • What are migraines?
  • What causes migraines?
  • Who is at risk for migraines?
  • What are the symptoms of migraines?
  • How are migraines diagnosed?
  • How are migraines treated?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G43.109 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
346.00 Mgrn w aura wo ntrc mgrn
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G43.109Overview

Is G43.109 (Migraine with aura, not intractable) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report migraine with aura, not intractable, without status migrainosus on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does G43.109 group to?

When migraine with aura, not intractable, without status migrainosus is the principal diagnosis on an inpatient stay, it groups to MS-DRG 102, 103, with relative weights from 0.8363 to 1.1209 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of G43.109?

Under the General Equivalence Mappings, migraine with aura, not intractable, without status migrainosus converts to ICD-9-CM 346.00 (mgrn w aura wo ntrc mgrn). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.