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ICD-10/G43.41

G43.41 ICD-10-CM Code: Hemiplegic migraine, intractable

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Hemiplegic migraine, intractable is a non-billable ICD-10-CM category code (G43.41). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for G43.41 in the official ICD-10-CM tabular list.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Hemiplegic migraine with refractory migraine

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • lower half migraine (G44.00)

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • headache NOS (R51.9)
  • headache syndromes (G44.-)

Use Additional Code

Supplementary codes the tabular list directs you to add.

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

Frequently Asked Questions (FAQ) & Clinical Guidance

Can G43.41 be billed directly?

No. G43.41 (Hemiplegic migraine, intractable) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to G43.41 in its code family, with their registry titles.

  • 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
  • G43.411 — 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

View all codes in the G43 family