G43 Migraine

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Migraine is G43 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
G40-G47: Episodic and paroxysmal disorders (G40-G47)
Category G43
82 codes (48 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with G43.
  • lower half migraine (G44.00)
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • headache NOS (R51.9)
  • 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

Official Coding Guidelines

Dominant/nondominant side (TOC entry)

a. Dominant/nondominant side ................................................................................................. 45

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.a
Pain - Category G89 (TOC entry)

b. Pain - Category G89.............................................................................................................. 45

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

G43.0 Migraine without aura G43.00 Migraine without aura, not intractable G43.001 Migraine without aura, not intractable, with status migrainosus G43.009 Migraine without aura, not intractable, without status migrainosus G43.01 Migraine without aura, intractable 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 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 G43.401 Hemiplegic migraine, not intractable, with status migrainosus G43.409 Hemiplegic migraine, not intractable, without status migrainosus G43.41 Hemiplegic migraine, intractable G43.411 Hemiplegic migraine, intractable, with status migrainosus G43.419 Hemiplegic migraine, intractable, without status migrainosus G43.5 Persistent migraine aura without cerebral infarction G43.50 Persistent migraine aura without cerebral infarction, not intractable G43.501 Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus G43.509 Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus G43.51 Persistent migraine aura without cerebral infarction, intractable G43.511 Persistent migraine aura without cerebral infarction, intractable, with status migrainosus G43.519 Persistent migraine aura without cerebral infarction, intractable, without status migrainosus G43.6 Persistent migraine aura with cerebral infarction G43.60 Persistent migraine aura with cerebral infarction, not intractable

Related Codes in G43

G43.0 Migraine without aura G43.00 Migraine without aura, not intractable G43.001 Migraine without aura, not intractable, with status migrainosus G43.009 Migraine without aura, not intractable, without status migrainosus G43.01 Migraine without aura, intractable 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 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 G43.401 Hemiplegic migraine, not intractable, with status migrainosus G43.409 Hemiplegic migraine, not intractable, without status migrainosus G43.41 Hemiplegic migraine, intractable G43.411 Hemiplegic migraine, intractable, with status migrainosus
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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