CA21.Z
Emphysema, unspecified
Emphysema, unspecified
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms
SNOMED CT ↗
- Chronic atelectasis123713005
- Bullous emphysema195957006
- Scar emphysema233677001
- Bullous emphysema with collapse266355005
- Atrophic (senile) emphysema266356006
- Cyst of lung275504005
- Bulla of lung278976004
- Chronic haemolytic anaemia707480001
- CPFE - combined pulmonary fibrosis and emphysema708030004
- Emphysema of left lung1010333003
Frequently Asked Questions
What is the ICD-11 code for emphysema, unspecified?
The ICD-11 code for emphysema, unspecified is CA21.Z. The full clinical description is "Emphysema, unspecified".
What does ICD-11 code CA21.Z mean?
ICD-11 code CA21.Z represents "Emphysema, unspecified". It is classified under Chapter 12: Diseases of the Respiratory System.
What chapter is CA21.Z in?
CA21.Z is in Chapter 12: Diseases of the Respiratory System (codes CA00-CB7Z).
What is the ICD-10 equivalent of ICD-11 code CA21.Z?
CA21.Z maps to 3 ICD-10 codes: J43 (Emphysema), J43.8 (Other emphysema), J43.9 (Emphysema, 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 CA21.Z map to?
CA21.Z maps to 10 SNOMED CT concepts: 233677001, 266356006, 278976004, 195957006, 266355005, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code CA21.Z?
CA21.Z is linked to 5 UMLS Concept Unique Identifiers: C0034067, C0029607, C2887443, C0152242, C2887444. 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.