4A01.1Z
Combined immunodeficiencies, unspecified
Combined 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(13)
SNOMED CT ↗
- Combined T-cell and B-cell immunodeficiency31323000
- Benign combined immunodeficiency234572005
- Autosomal recessive SCID (severe combined immunodeficiency disease)362993009
- Combined immunodeficiency disease442459007
- Cernunnos-XLF deficiency720853005
- Congenital atrophy of optic nerve722990003
- Combined immunodeficiency with faciooculoskeletal anomalies syndrome770625006
- Combined immunodeficiency due to RAG 1/2 (recombination activating gene 1/2) deficiency783743009
- Achondroplasia, severe combined immunodeficiency syndrome789777007
- Autoimmune haemolytic anaemia, autoimmune thrombocytopenia, primary immunodeficiency syndrome1222681008
Frequently Asked Questions
What is the ICD-11 code for combined immunodeficiencies, unspecified?
The ICD-11 code for combined immunodeficiencies, unspecified is 4A01.1Z. The full clinical description is "Combined immunodeficiencies, unspecified".
What does ICD-11 code 4A01.1Z mean?
ICD-11 code 4A01.1Z represents “Combined immunodeficiencies, unspecified”. It is classified under Chapter 4: Diseases of the Immune System.
What chapter is 4A01.1Z in?
4A01.1Z is in Chapter 4: Diseases of the Immune System (codes 4A00-4B4Z).
What is the ICD-10 equivalent of ICD-11 code 4A01.1Z?
4A01.1Z maps to 3 ICD-10 codes: D81 (Combined immunodeficiencies), D81.8 (Other combined immunodeficiencies), D81.9 (Combined 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 4A01.1Z map to?
4A01.1Z maps to 10 SNOMED CT concepts: 789777007, 1222681008, 362993009, 234572005, 720853005, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 4A01.1Z?
4A01.1Z is linked to 3 UMLS Concept Unique Identifiers: C2711630, C0477324, C2873846. 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.