Mechanical entropion of left eye, unspecified eyelid

This code signifies an inward turning of the lower or upper eyelid margin of the left eye due to a mechanical cause, such as scarring, tumor, or inflammation. This mechanical force causes the eyelashes to rub against the cornea and conjunctiva, leading to irritation, foreign body sensation, and potential corneal damage. The specific eyelid affected (upper or lower) is not documented.

Use this code when documentation specifies mechanical entropion affecting the left eye, but does not differentiate between the upper or lower eyelid. This diagnosis is typically supported by ophthalmological examination findings detailing the inward turning of the eyelid margin and the presence of a mechanical etiology.

• Differentiate from spastic entropion (H02.01-) which is due to muscle spasm.
• If the specific eyelid (upper or lower) is documented, use the more specific codes (H02.023 or H02.024).
• Code any underlying mechanical cause (e.g., scar, tumor) separately.