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G44.4

Non-billable

Drug-induced headache, not elsewhere classified

G44.4 is the ICD-10-CM code for Drug-induced headache, not elsewhere classified. It is a non-billable category code — use a more specific child code such as G44.40 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G44
Subcodes
2
Edition
FY2026

G00-G99 Diseases of the nervous system

Includes

  • •Medication overuse headache

Use additional code

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

Frequently asked questions

What is ICD-10 code G44.4?
G44.4 is the ICD-10-CM code for "Drug-induced headache, not elsewhere classified". It falls under G00-G99 Diseases of the nervous system.
Is G44.4 a billable code?
No — G44.4 is a non-billable header code. Use a more specific child code (such as G44.40) for billing.
What are the subcodes of G44.4?
G44.4 has 2 more specific child codes, including G44.40, G44.41.

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

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