G44
Non-billableOther headache syndromes
Other headache syndromes
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •atypical facial painG50.1
- •headache due to lumbar punctureG97.1
- •migrainesG43
- •trigeminal neuralgiaG50.0
Child Codes (7)
G44.0Cluster headaches and oth trigeminal autonm cephalgias (TAC)
G44.1Vascular headache, not elsewhere classified
G44.2Tension-type headache
G44.3Post-traumatic headache
G44.4Drug-induced headache, not elsewhere classified
G44.5Complicated headache syndromes
G44.8Other specified headache syndromes
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for other headache syndromes?
The ICD-10-CM code for other headache syndromes is G44. The full clinical description is "Other headache syndromes". G44 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code G44 mean?
ICD-10-CM code G44 represents “Other headache syndromes”. It is classified under Chapter 6: Diseases of the Nervous System and is a non-billable header code. Use a more specific child code for billing purposes.
Is G44 a billable code?
No, G44 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under G44.
What chapter is G44 in?
G44 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G44?
G44 has Excludes1 notes indicating codes that cannot be used together with it, including: headache NOS (R51.9).
What are the subcategories under G44?
G44 has 7 child codes, including: G44.0 (Cluster headaches and oth trigeminal autonm cephalgias (TAC)), G44.1 (Vascular headache, not elsewhere classified), G44.2 (Tension-type headache), G44.3 (Post-traumatic headache), and 3 more.
What are the UMLS CUIs for G44?
G44 is linked to 1 UMLS Concept Unique Identifier: C0494479. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G44 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other headache syndromes affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G44?
G44 maps to the ICD-11 code: 8A81.Z (Tension-type headache, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.