CA20.1Z
Chronic bronchitis, unspecified
Chronic bronchitis, unspecified
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms
SNOMED CT ↗
- Bronchitis32398004
- Chronic bronchitis63480004
- Bronchial infection233795005
- Chronic graft versus host disease402356004
- Chronic bronchiolitis737180005
- Bronchiolitis obliterans syndrome due to and after lung transplantation762618008
- Bronchitis co-occurrent with wheeze785728005
- Chronic bronchitis co-occurrent with wheeze785736001
- Bronchitis co-occurrent with chronic wheeze785737005
- Bronchitis co-occurrent with acute wheeze785744001
Frequently Asked Questions
What is the ICD-11 code for chronic bronchitis, unspecified?
The ICD-11 code for chronic bronchitis, unspecified is CA20.1Z. The full clinical description is "Chronic bronchitis, unspecified".
What does ICD-11 code CA20.1Z mean?
ICD-11 code CA20.1Z represents "Chronic bronchitis, unspecified". It is classified under Chapter 12: Diseases of the Respiratory System.
What chapter is CA20.1Z in?
CA20.1Z is in Chapter 12: Diseases of the Respiratory System (codes CA00-CB7Z).
What is the ICD-10 equivalent of ICD-11 code CA20.1Z?
CA20.1Z maps to 2 ICD-10 codes: J41 (Simple and mucopurulent chronic bronchitis), J42 (Unspecified chronic bronchitis). 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 CA20.1Z map to?
CA20.1Z maps to 10 SNOMED CT concepts: 233795005, 762618008, 32398004, 785744001, 785737005, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code CA20.1Z?
CA20.1Z is linked to 4 UMLS Concept Unique Identifiers: C0392000, C0008677, C0264322, C0264323. 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.