AutoICD API

AB33

Otosclerosis

Otosclerosis

Classification

ICD-11

Parent Code

BlockL1-AB3

ICD-10 Mapping

6 equivalents

WHO Foundation

View on WHO
ICD-10 Equivalents(6)

ICD-10 Equivalents

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Corresponding ICD-10-CM codes from the WHO crosswalk mapping

H80OtosclerosisequivalentPrimaryH80.0Otosclerosis involving oval window, nonobliterativeequivalentPrimaryH80.1Otosclerosis involving oval window, obliterativeequivalentPrimaryH80.2Cochlear otosclerosisequivalentPrimaryH80.8Other otosclerosisequivalentPrimaryH80.9Unspecified otosclerosisequivalentPrimary
Also Known As / Clinical Terms(7)

UMLS ↗

Frequently Asked Questions
What is the ICD-11 code for otosclerosis?

The ICD-11 code for otosclerosis is AB33. The full clinical description is "Otosclerosis".

What does ICD-11 code AB33 mean?

ICD-11 code AB33 represents “Otosclerosis”. It is classified under Chapter 10: Diseases of the Ear or Mastoid Process.

What chapter is AB33 in?

AB33 is in Chapter 10: Diseases of the Ear or Mastoid Process (codes AA00-AC0Z).

What is the ICD-10 equivalent of ICD-11 code AB33?

AB33 maps to 6 ICD-10 codes: H80 (Otosclerosis), H80.0 (Otosclerosis involving oval window, nonobliterative), H80.1 (Otosclerosis involving oval window, obliterative), and 3 more. 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 AB33?

AB33 is linked to 7 UMLS Concept Unique Identifiers: C0029899, C0155524, C0155525, C0155526, C0271491, and 2 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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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.