---
title: "ICD-10-CM G44.011: Episodic cluster headache, intractable | BillingBrief"
description: "ICD-10-CM code G44.011: Episodic cluster headache, intractable. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/g44.011/"
language: "en"
---

# G44.011 Episodic cluster headache, intractable

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Episodic cluster headache, intractable

## Related codes

-   [`G44.001` Cluster headache syndrome, unspecified, intractable ICD-10-CM](https://billingbrief.com/icd10/g44.001/)
-   [`G44.009` Cluster headache syndrome, unspecified, not intractable ICD-10-CM](https://billingbrief.com/icd10/g44.009/)
-   [`G44.019` Episodic cluster headache, not intractable ICD-10-CM](https://billingbrief.com/icd10/g44.019/)
-   [`G44.021` Chronic cluster headache, intractable ICD-10-CM](https://billingbrief.com/icd10/g44.021/)
-   [`G44.029` Chronic cluster headache, not intractable ICD-10-CM](https://billingbrief.com/icd10/g44.029/)
-   [`G44.031` Episodic paroxysmal hemicrania, intractable ICD-10-CM](https://billingbrief.com/icd10/g44.031/)
-   [`G44.039` Episodic paroxysmal hemicrania, not intractable ICD-10-CM](https://billingbrief.com/icd10/g44.039/)
-   [`G44.041` Chronic paroxysmal hemicrania, intractable ICD-10-CM](https://billingbrief.com/icd10/g44.041/)

## Common questions

### Is G44.011 a billable code?

Yes. G44.011 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

G44 Other headache syndromes

Chapter

Diseases of the nervous system

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).