1B20.1
Multibacillary leprosy
Multibacillary leprosy
Classification
ICD-11
Block
1B10-1B2ZParent Code
1B20ICD-10 Mapping
3 equivalentsWHO Foundation
View on WHOICD-10 Equivalents(3)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(11)
SNOMED CT ↗
- Full lepromatous leprosy21560005
- BL - Borderline lepromatous leprosy240403008
- Diffuse lepromatous leprosy240404002
- Borderline leprosy400008009
- BB - Borderline leprosy400154003
- Lepromatous anterior uveitis414600000
- Facies leprosa711171008
- Lepromatous scarring alopecia1176996009
- Cicatricial alopecia due to infectious disease1256050003
Frequently Asked Questions
What is the ICD-11 code for multibacillary leprosy?
The ICD-11 code for multibacillary leprosy is 1B20.1. The full clinical description is "Multibacillary leprosy".
What does ICD-11 code 1B20.1 mean?
ICD-11 code 1B20.1 represents “Multibacillary leprosy”. It is classified under Chapter 1: Certain Infectious or Parasitic Diseases.
What chapter is 1B20.1 in?
1B20.1 is in Chapter 1: Certain Infectious or Parasitic Diseases (codes 1A00-1H0Z).
What is the ICD-10 equivalent of ICD-11 code 1B20.1?
1B20.1 maps to 3 ICD-10 codes: A30.3 (Borderline leprosy), A30.4 (Borderline lepromatous leprosy), A30.5 (Lepromatous leprosy). 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 1B20.1 map to?
1B20.1 maps to 9 SNOMED CT concepts: 400154003, 400008009, 240403008, 1256050003, 240404002, and 4 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 1B20.1?
1B20.1 is linked to 2 UMLS Concept Unique Identifiers: C1389289, C0023346. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate Medical Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 and ICD-11 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.