CB21.Z
Pneumothorax, unspecified
Pneumothorax, unspecified
ICD-10 Equivalents(3)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(8)
Frequently Asked Questions
What is the ICD-11 code for pneumothorax, unspecified?
The ICD-11 code for pneumothorax, unspecified is CB21.Z. The full clinical description is "Pneumothorax, unspecified".
What does ICD-11 code CB21.Z mean?
ICD-11 code CB21.Z represents “Pneumothorax, unspecified”. It is classified under Chapter 12: Diseases of the Respiratory System.
What chapter is CB21.Z in?
CB21.Z is in Chapter 12: Diseases of the Respiratory System (codes CA00-CB7Z).
What is the ICD-10 equivalent of ICD-11 code CB21.Z?
CB21.Z maps to 3 ICD-10 codes: J93 (Pneumothorax and air leak), J93.8 (Other pneumothorax and air leak), J93.9 (Pneumothorax, unspecified). 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 SNOMED CT codes does CB21.Z map to?
CB21.Z maps to 5 SNOMED CT concepts: 248702003, 2713001, 109364007, 36118008, 109363001. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code CB21.Z?
CB21.Z is linked to 3 UMLS Concept Unique Identifiers: C3161433, C3161434, C0032326. 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.