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Definition: A small bump on the eyelid that forms due to blockage and swelling of an oil gland at the base of the eyelash.

Pronunciation: kah-la┬┤ze-on

Body System: Eyes And Ears

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ICD10 Codes Containing Term: chalazion

H00.11 Chalazion right upper eyelid
H00.12 Chalazion right lower eyelid
H00.13 Chalazion right eye, unspecified eyelid
H00.14 Chalazion left upper eyelid
H00.15 Chalazion left lower eyelid
H00.16 Chalazion left eye, unspecified eyelid
H00.19 Chalazion unspecified eye, unspecified eyelid
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