Chalazion

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

A chalazion is a small cyst on the eyelid caused by blockage of a meibomian gland.

sections/codes in this section (9A02.0-9A02.0)

• Chalazion externum  (9A02.00)
• Chalazion internum  (9A02.01)
• Chalazion, unspecified  (9A02.0Z)

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