Not Valid for Submission
G44.00 is a "header" nonspecific and non-billable diagnosis 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 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.
Unspecified diagnosis codes like G44.00 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Specific Coding for Cluster headache syndrome, unspecified
Header codes like G44.00 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for cluster headache syndrome, unspecified:
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 TermsInclusion 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
- 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
Information for Patients
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
- Cluster headache (Medical Encyclopedia)
- Headache (Medical Encyclopedia)
- Headaches -- danger signs (Medical Encyclopedia)
- Managing tension headaches at home (Medical Encyclopedia)
- Tension headache (Medical Encyclopedia)