4A0Z
Primary immunodeficiencies, unspecified
Primary immunodeficiencies, 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(14)
SNOMED CT ↗
- HAE - Hereditary angio-oedema82966003
- Immunodeficiency with major anomalies234631003
- 18-p syndrome with associated immunodeficiency234640004
- Immunodeficiency associated with multiple organ system abnormalities234641000
- Age-related immunodeficiency234642007
- Hereditary angio-oedema with normal C1 esterase inhibitor activity427167008
- Primary immunodeficiency syndrome due to p14 deficiency718717004
- Woods Black Norbury syndrome719827008
- Adult-onset immunodeficiency735536003
- Adenovirus infection in immunocompromised person1264007008
Frequently Asked Questions
What is the ICD-11 code for primary immunodeficiencies, unspecified?
The ICD-11 code for primary immunodeficiencies, unspecified is 4A0Z. The full clinical description is "Primary immunodeficiencies, unspecified".
What does ICD-11 code 4A0Z mean?
ICD-11 code 4A0Z represents “Primary immunodeficiencies, unspecified”. It is classified under Chapter 4: Diseases of the Immune System.
What chapter is 4A0Z in?
4A0Z is in Chapter 4: Diseases of the Immune System (codes 4A00-4B4Z).
What is the ICD-10 equivalent of ICD-11 code 4A0Z?
4A0Z maps to 3 ICD-10 codes: D82.8 (Immunodeficiency associated with oth major defects), D82.9 (Immunodeficiency associated with major defect, unspecified), D84.9 (Immunodeficiency, 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 4A0Z map to?
4A0Z maps to 10 SNOMED CT concepts: 234640004, 82966003, 427167008, 718717004, 719827008, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 4A0Z?
4A0Z is linked to 4 UMLS Concept Unique Identifiers: C0477325, C0477326, C0021051, C0085393. 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.