Mechanical entropion of right eye, unspecified eyelid

This code signifies an inward turning of the right eyelid margin due to a mechanical cause, such as scarring, a mass, or trauma, rather than muscle spasm. This condition can lead to the eyelashes rubbing against the cornea, causing irritation, pain, and potential corneal damage. The "unspecified eyelid" indicates that the specific upper or lower eyelid affected is not documented.

Apply this code when documentation clearly states mechanical entropion affecting the right eye, but does not specify whether it is the upper or lower eyelid. This diagnosis is typically made upon ophthalmic examination revealing the inward turning of the eyelid margin and identifying a mechanical etiology.

• Ensure the documentation specifies "mechanical" entropion; otherwise, consider codes for spastic or other types of entropion.
• If the specific eyelid (upper or lower) is documented, use the more precise codes (H02.021 or H02.022).
• Always code any underlying mechanical cause (e.g., scar, tumor) in addition to the entropion.