ICD-10-CM Code G44.00

Cluster headache syndrome, unspecified

Version 2020 Non-Billable Code

Not Valid for Submission

G44.00 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of cluster headache syndrome, unspecified. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:G44.00
Short Description:Cluster headache syndrome, unspecified
Long Description:Cluster headache syndrome, unspecified

Consider the following ICD-10 codes with a higher level of specificity:

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G44.00:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Ciliary neuralgia
  • Cluster headache NOS
  • Histamine cephalgia
  • Lower half migraine
  • Migrainous neuralgia

Clinical Information

  • CLUSTER HEADACHE-. a primary headache disorder that is characterized by severe strictly unilateral pain which is orbital supraorbital temporal or in any combination of these sites lasting 15 180 min. occurring 1 to 8 times a day. the attacks are associated with one or more of the following all of which are ipsilateral: conjunctival injection lacrimation nasal congestion rhinorrhea facial sweating eyelid edema and miosis. international classification of headache disorders 2nd ed. cephalalgia 2004: suppl 1

Code Classification

  • Diseases of the nervous system (G00–G99)
    • Episodic and paroxysmal disorders (G40-G47)
      • Other headache syndromes (G44)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Headache

Almost everyone has had a headache. Headache is the most common form of pain. It's a major reason people miss days at work or school or visit the doctor.

The most common type of headache is a tension headache. Tension headaches are due to tight muscles in your shoulders, neck, scalp and jaw. They are often related to stress, depression or anxiety. You are more likely to get tension headaches if you work too much, don't get enough sleep, miss meals, or use alcohol.

Other common types of headaches include migraines, cluster headaches, and sinus headaches. Most people can feel much better by making lifestyle changes, learning ways to relax and taking pain relievers.

Not all headaches require a doctor's attention. But sometimes headaches warn of a more serious disorder. Let your health care provider know if you have sudden, severe headaches. Get medical help right away if you have a headache after a blow to your head, or if you have a headache along with a stiff neck, fever, confusion, loss of consciousness, or pain in the eye or ear.

NIH: National Institute of Neurological Disorders and Stroke


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