4B4Z
Diseases of the immune system, unspecified
Diseases of the immune system, unspecified
ICD-10 Equivalents(7)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(20)
SNOMED CT ↗
- Cryofibrinogenaemia10934005
- Cryoglobulinaemia30911005
- Cryoglobulinaemic purpura190814002
- Cryoglobulinaemic vasculitis190815001
- Cryoglobulinaemic glomerulonephritis236505008
- Drug-induced necrotising vasculitis402659000
- Cryofibrinogenemic purpura402853002
- Cryoglobulinaemia type 1723674005
- Cryoglobulinaemia due to chronic hepatitis C128971000119101
- Drug-induced nephritis111491000119107
UMLS ↗
- BESNIER BOECK DISC0036202
- Certain disorders involving the immune mechanism (D80-D89)C0477322
- Complement DeficienciesC0272242
- immunodeficiency disorders, except human immunodeficiency virus [HIV] diseaseC4290089
- Other immunodeficienciesC0494264
- Other specified immunodeficienciesC0494266
- Oth disorders involving the immune mechanism, NECC0494268
- Essential cryoglobulinemiaC2873856
- Idiopathic cryoglobulinemiaC2873857
- Mixed cryoglobulinaemiaC0543697
Frequently Asked Questions
What is the ICD-11 code for diseases of the immune system, unspecified?
The ICD-11 code for diseases of the immune system, unspecified is 4B4Z. The full clinical description is "Diseases of the immune system, unspecified".
What does ICD-11 code 4B4Z mean?
ICD-11 code 4B4Z represents “Diseases of the immune system, unspecified”. It is classified under Chapter 4: Diseases of the Immune System.
What chapter is 4B4Z in?
4B4Z is in Chapter 4: Diseases of the Immune System (codes 4A00-4B4Z).
What is the ICD-10 equivalent of ICD-11 code 4B4Z?
4B4Z maps to 7 ICD-10 codes: D80-D89, D84 (Other immunodeficiencies), D84.8 (Other specified immunodeficiencies), and 4 more. 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 4B4Z map to?
4B4Z maps to 10 SNOMED CT concepts: 10934005, 402853002, 30911005, 128971000119101, 723674005, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 4B4Z?
4B4Z is linked to 10 UMLS Concept Unique Identifiers: C0036202, C0477322, C0272242, C4290089, C0494264, and 5 more. 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.