AB91
Mucosal cyst of postmastoidectomy cavity
Mucosal cyst of postmastoidectomy cavity
Classification
ICD-11
Block
AB90-AB93Parent Code
BlockL1-AB9ICD-10 Mapping
1 equivalentWHO Foundation
View on WHOICD-10 Equivalents(1)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-11 code for mucosal cyst of postmastoidectomy cavity?
The ICD-11 code for mucosal cyst of postmastoidectomy cavity is AB91. The full clinical description is "Mucosal cyst of postmastoidectomy cavity".
What does ICD-11 code AB91 mean?
ICD-11 code AB91 represents “Mucosal cyst of postmastoidectomy cavity”. It is classified under Chapter 10: Diseases of the Ear or Mastoid Process.
What chapter is AB91 in?
AB91 is in Chapter 10: Diseases of the Ear or Mastoid Process (codes AA00-AC0Z).
What is the ICD-10 equivalent of ICD-11 code AB91?
AB91 maps to the ICD-10 code: H95.1 (Oth disorders of ear/mastd following mastoidectomy). This is an equivalent mapping.
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 AB91?
AB91 is linked to 1 UMLS Concept Unique Identifier: C2882021. 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.