Ulcerative blepharitis left upper eyelid

This code signifies an inflammatory condition affecting the left upper eyelid, specifically characterized by ulceration. It indicates a localized breakdown of the tissue on the eyelid margin, often associated with chronic inflammation of the eyelash follicles and glands.

Apply this code when documentation clearly states ulcerative blepharitis impacting the left upper eyelid. This diagnosis is supported by findings such as eyelid margin ulcerations, crusting, redness, and inflammation localized to the specified area.

• Ensure laterality (left) and eyelid specificity (upper) are clearly documented.
• Differentiate from non-ulcerative blepharitis (H01.00-) and other eyelid inflammatory conditions.
• Code any underlying cause or associated infection if documented and clinically appropriate.