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G44.00 - Cluster headache syndrome, unspecified


The ICD 10 Code for Cluster headache syndrome, unspecified is listed as G44.00.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: G44.00
Description: Cluster headache syndrome, unspecified
  • Ciliary neuralgia
  • Cluster headache NOS
  • Histamine cephalgia
  • Lower half migraine
  • Migrainous neuralgia
Chapter Diseases of the nervous system (G00-G99)
Block Episodic and paroxysmal disorders (G40-G47)
Parent G44.0 - Cluster headaches and other trigeminal autonomic cephalgias (TAC)
ICD-10-CM Children (deeper level / typically more specific) of G44.00:
G44.001 - Cluster headache syndrome, unspecified, intractable
G44.009 - Cluster headache syndrome, unspecified, not intractable
ICD-10-CM Siblings (same level / similar specificity) of G44.00:
G44.01 - Episodic cluster headache
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)