9A01.21 Hordeolum internum

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


A focal acute pyogenic infection, usually by Staphylococcus aureus, of a meibomian gland, the normal secretion from which into the eyelash follicle is blocked. It presents as an acute inflammatory swelling which may discharge onto the conjunctival surface of the eyelid, or rarely anteriorly through the eyelid skin. It may predispose to formation of a chalazion.

exclusions

postcoordination

Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.

Laterality  - only one may be selected
Specific anatomy  - multiple selections are allowed
Infectious agent  - multiple selections are allowed

synonyms

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