EA91.4

The ICD-11 code for lichen planus and lichenoid reactions of oral mucosa is EA91.4. The full clinical description is "Lichen planus and lichenoid reactions of oral mucosa".

ICD-11 code EA91.4 represents “Lichen planus and lichenoid reactions of oral mucosa”. It is classified under Chapter 14: Diseases of the Skin.

EA91.4 is in Chapter 14: Diseases of the Skin (codes EA00-EM0Z).

There is no direct ICD-10 mapping available for EA91.4 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-10. Use the ICD-11 to ICD-10 converter to search for related codes.

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.

EA91.4 has 5 child codes, including: EA91.40 (Non-erosive lichen planus of oral mucosa), EA91.41 (Erosive oral lichen planus), EA91.42 (Oral lichen planus, unspecified), EA91.43 (Lichenoid mucositis), and 1 more.