4B21
Polyclonal hypergammaglobulinaemia
Polyclonal hypergammaglobulinaemia
Classification
ICD-11
Block
4B20-4B2YParent Code
BlockL1-4B2ICD-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(7)
Frequently Asked Questions
What is the ICD-11 code for polyclonal hypergammaglobulinaemia?
The ICD-11 code for polyclonal hypergammaglobulinaemia is 4B21. The full clinical description is "Polyclonal hypergammaglobulinaemia".
What does ICD-11 code 4B21 mean?
ICD-11 code 4B21 represents “Polyclonal hypergammaglobulinaemia”. It is classified under Chapter 4: Diseases of the Immune System.
What chapter is 4B21 in?
4B21 is in Chapter 4: Diseases of the Immune System (codes 4A00-4B4Z).
What is the ICD-10 equivalent of ICD-11 code 4B21?
4B21 maps to the ICD-10 code: D89.0 (Polyclonal hypergammaglobulinemia). 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 SNOMED CT codes does 4B21 map to?
4B21 maps to 5 SNOMED CT concepts: 190810006, 402852007, 16618004, 190808009, 190809001. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 4B21?
4B21 is linked to 2 UMLS Concept Unique Identifiers: C2873855, C0154254. 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.