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

What this means — in plain language

MedlinePlus · NIH

Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies. What is a drug interaction? A drug interaction is a change in the way a drug acts in the body when taken with certain other drugs, foods, or supplements…

Read more about Drug Reactions at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Medication overuse headache

Use additional code

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

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

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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