ICD-10-CM Code G44

Not Valid for Submission

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

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:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• headache NOS R51

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

• atypical facial pain G50.1
• headache due to lumbar puncture G97.1
• migraines G43
• trigeminal neuralgia G50.0

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
• HEADACHE DISORDERS-. various conditions with the symptom of headache. headache disorders are classified into major groups such as primary headache disorders based on characteristics of their headache symptoms and secondary headache disorders based on their etiologies. international classification of headache disorders 2nd ed. cephalalgia 2004: suppl 1
• HEADACHE DISORDERS PRIMARY-. conditions in which the primary symptom is headache and the headache cannot be attributed to any known causes.

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

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