G43.109 Migraine with aura, not intractable, without status migrainosus

Billable ICD-10-CM code, FY2026.

Applicable to

• Migraine with aura NOS

Applies from G43 Migraine

Excludes1 (never code together)

• headache NOS (R51.9)
• lower half migraine (G44.00)

Excludes2 (not included here)

• headache syndromes (G44.-)

Use additional code

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

Notes

• the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled

Applies from G43.1 Migraine with aura

Applicable to

• Basilar migraine
• Classical migraine
• Migraine equivalents
• Migraine preceded or accompanied by transient focal neurological phenomena
• Migraine triggered seizures
• Migraine with acute-onset aura
• Migraine with aura without headache (migraine equivalents)
• Migraine with prolonged aura
• Migraine with typical aura
• Retinal migraine

Excludes1 (never code together)

• chronic migraine with aura (G43.E-)
• persistent migraine aura (G43.5-, G43.6-)

Code also

• any associated seizure (G40.-, R56.9)

Applies from G43.10 Migraine with aura, not intractable

Applicable to

• Migraine with aura without mention of refractory migraine

Risk adjustment (HCC)

• RxHCC V08: HCC 166 — Migraine Headaches

MS-DRG index

Defines the logic of DRG(s) 102-103 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 346.00 Migraine with aura, without mention of intractable migraine without mention of status migrainosus

Code annotations containing back-references to G43.109

Back-references to G43.1

• Type 1 Excludes: G43.E Chronic migraine with aura ("migraine with aura (G43.1-)")

Back-references to G43

• Type 2 Excludes: G44 Other headache syndromes ("migraines (G43.-)")
• Type 2 Excludes: G44.1 Vascular headache, not elsewhere classified ("migraine (G43.-)")
• Type 2 Excludes: G89 Pain, not elsewhere classified ("migraines (G43.-)")
• Type 2 Excludes: R51 Headache ("migraine and other headache syndromes (G43-G44)")

Diagnosis Index entries for G43.109

• 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

Nearby codes

• G43.011 Migraine without aura, intractable, with status migrainosus
• G43.019 Migraine without aura, intractable, without status migrainosus
• G43.1 Migraine with aura
• G43.10 Migraine with aura, not intractable
• G43.101 Migraine with aura, not intractable, with status migrainosus
• G43.109 Migraine with aura, not intractable, without status migrainosus (this code)
• G43.11 Migraine with aura, intractable
• G43.111 Migraine with aura, intractable, with status migrainosus
• G43.119 Migraine with aura, intractable, without status migrainosus
• G43.4 Hemiplegic migraine
• G43.40 Hemiplegic migraine, not intractable