8A81.Z
Tension-type headache, unspecified
Tension-type headache, unspecified
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-11 code for tension-type headache, unspecified?
The ICD-11 code for tension-type headache, unspecified is 8A81.Z. The full clinical description is "Tension-type headache, unspecified".
What does ICD-11 code 8A81.Z mean?
ICD-11 code 8A81.Z represents "Tension-type headache, unspecified". It is classified under Chapter 8: Diseases of the Nervous System.
What chapter is 8A81.Z in?
8A81.Z is in Chapter 8: Diseases of the Nervous System (codes 8A00-8E7Z).
What is the ICD-10 equivalent of ICD-11 code 8A81.Z?
8A81.Z maps to 2 ICD-10 codes: G44 (Other headache syndromes), G44.4 (Drug-induced headache, not elsewhere classified). ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.
What is the difference between ICD-10 and ICD-11?
ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.
What UMLS concepts map to ICD-11 code 8A81.Z?
8A81.Z is linked to 3 UMLS Concept Unique Identifiers: C0494479, C0869051, C2349423. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate Medical Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 and ICD-11 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.