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G43.40

Non-billable

Hemiplegic migraine, not intractable

G43.40 is the ICD-10-CM code for Hemiplegic migraine, not intractable. It is a non-billable category code — use a more specific child code such as G43.401 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G43.4
Subcodes
2
Edition
FY2026

G00-G99 Diseases of the nervous system

Includes

  • •Hemiplegic migraine without refractory migraine

Frequently asked questions

What is ICD-10 code G43.40?
G43.40 is the ICD-10-CM code for "Hemiplegic migraine, not intractable". It falls under G00-G99 Diseases of the nervous system.
Is G43.40 a billable code?
No — G43.40 is a non-billable header code. Use a more specific child code (such as G43.401) for billing.
What are the subcodes of G43.40?
G43.40 has 2 more specific child codes, including G43.401, G43.409.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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