Cluster headache syndrome, unspecified G44.00

The ICD10 code for the diagnosis "Cluster headache syndrome, unspecified" is "G44.00". G44.00 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • G44.00 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM G44.00 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of G44.00 - other international versions of ICD-10 G44.00 may differ.
Applicable To:
  • Ciliary neuralgia
  • Cluster headache NOS
  • Histamine cephalgia
  • Lower half migraine
  • Migrainous neuralgia

Codes: = Billable

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