1E91.Z
Zoster, unspecified
Zoster, unspecified
ICD-10 Equivalents(4)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(15)
SNOMED CT ↗
- Chicken pox pneumonia195911009
- Amyotrophy caused by herpes zoster230262004
- Herpes zoster involving lumbar dermatome240471009
- Herpes zoster dermatitis400020001
- Herpes zoster involving tip of nose410500004
- Exanthem caused by herpes zoster428633000
- Gingival disease caused by virus707129008
- Gingival disease caused by varicella-zoster virus713250002
- Bacterial infection co-occurrent and due to herpes zoster12561000132105
- Herpes zoster pneumonia12571000132104
Frequently Asked Questions
What is the ICD-11 code for zoster, unspecified?
The ICD-11 code for zoster, unspecified is 1E91.Z. The full clinical description is "Zoster, unspecified".
What does ICD-11 code 1E91.Z mean?
ICD-11 code 1E91.Z represents “Zoster, unspecified”. It is classified under Chapter 1: Certain Infectious or Parasitic Diseases.
What chapter is 1E91.Z in?
1E91.Z is in Chapter 1: Certain Infectious or Parasitic Diseases (codes 1A00-1H0Z).
What is the ICD-10 equivalent of ICD-11 code 1E91.Z?
1E91.Z maps to 4 ICD-10 codes: B02 (Zoster [herpes zoster]), B02.2 (Zoster with other nervous system involvement), B02.8 (Zoster with other complications), and 1 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 1E91.Z map to?
1E91.Z maps to 10 SNOMED CT concepts: 230262004, 12561000132105, 195911009, 428633000, 713250002, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code 1E91.Z?
1E91.Z is linked to 5 UMLS Concept Unique Identifiers: C0019360, C0153022, C0153031, C0276249, C0348190. 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.