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2. ICD-10 Codes
3. Chapter - G00-G99
4. Section - G40-G47
5. Category - G44
6. G44.01

G44.01 - Episodic cluster headache

• Applicable to Episodic cluster headache
• The 2025 edition of ICD10-CM G44.01 became effective on October 1, 2024.
• This is the American ICD10-CM version of G44.01 - other international versions of ICD10 G44.01 may differ.
• G44.01 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• G44.01 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.

The following codes above G44.01 contain annotation back-references that may be applicable to G44.01:

• Chapter: G00-G99 - Diseases of the nervous system
• Section: G40-G47 - Episodic and paroxysmal disorders
• Category: G44 - Other headache syndromes

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.