EA91.Z
Lichen planus of unspecified type
Lichen planus of unspecified type
Classification
ICD-11
Chapter
14: Diseases of the SkinBlock
EA90-EA95Parent Code
EA91ICD-10 Mapping
3 equivalentsICD-10 Equivalents(3)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(12)
SNOMED CT ↗
- Atrophic lichen planus25858008
- Actinic lichen planus200999007
- Annular lichen planus201000006
- Confluent lichen planus238645002
- Atrophic oral lichen planus238663002
- Chronic lichen planus402349005
- Annular oral lichen planus707247006
- Annular atrophic lichen planus720493003
- Acute eruptive lichen planus723003004
- Acute papular eruption of skin723013007
Frequently Asked Questions
What is the ICD-11 code for lichen planus of unspecified type?
The ICD-11 code for lichen planus of unspecified type is EA91.Z. The full clinical description is "Lichen planus of unspecified type".
What does ICD-11 code EA91.Z mean?
ICD-11 code EA91.Z represents “Lichen planus of unspecified type”. It is classified under Chapter 14: Diseases of the Skin.
What chapter is EA91.Z in?
EA91.Z is in Chapter 14: Diseases of the Skin (codes EA00-EM0Z).
What is the ICD-10 equivalent of ICD-11 code EA91.Z?
EA91.Z maps to 3 ICD-10 codes: L43 (Lichen planus), L43.8 (Other lichen planus), L43.9 (Lichen planus, 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 EA91.Z map to?
EA91.Z maps to 10 SNOMED CT concepts: 200999007, 723003004, 723013007, 720493003, 201000006, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code EA91.Z?
EA91.Z is linked to 2 UMLS Concept Unique Identifiers: C0023646, C0477487. 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.