Chalazion left eye, unspecified eyelid

This code represents a chalazion, which is a chronic, sterile, lipogranulomatous inflammation of a meibomian gland, presenting as a firm, painless nodule in the eyelid. Specifically, this code indicates the chalazion is located in the left eye, with the exact eyelid (upper or lower) not specified in the clinical documentation.

Use this code when documentation clearly identifies a chalazion affecting the left eye, but the specific eyelid (e.g., upper, lower) is not detailed. This is appropriate for initial encounters or follow-up visits where the laterality is known, but further specificity regarding the eyelid is absent.

• Avoid using this code if the documentation specifies the upper or lower eyelid; instead, use the more specific codes for those locations.
• Ensure the laterality (left eye) is explicitly stated in the clinical record to support this code.
• Distinguish from a hordeolum (stye), which is an acute bacterial infection of an eyelid gland, often painful and red.