G44.01
Episodic cluster headache
- Release
- FY 2027
- Effective
Hierarchy
Where G44.01 sits in the official hierarchy. Each level is the code it is classified under.
- G44 Other headache syndromes
- G44.0 Parent Cluster headaches and other trigeminal autonomic cephalgias (TAC)
- G44.01 This code Episodic cluster headache
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
More Specific Codes
2 codes under G44.01
Version History
How G44.01 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentEpisodic cluster headache
-
FY 2026 Effective
UnchangedEpisodic cluster headache
Related Codes
Other codes under G44.0
- G44.00 Cluster headache syndrome, unspecified
- G44.02 Chronic cluster headache
- G44.03 Episodic paroxysmal hemicrania
- G44.04 Chronic paroxysmal hemicrania
- G44.05 Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)
- G44.09 Other trigeminal autonomic cephalgias (TAC)
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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