Squamous blepharitis left eye, unspecified eyelid

This code signifies inflammation of the eyelid margins, specifically the left eye, characterized by squamous (scaly) changes. It indicates a chronic, non-ulcerative form of blepharitis affecting the left eyelid, without further specification of which eyelid (upper or lower).

Apply this code when documentation specifies squamous blepharitis affecting the left eye, and the specific eyelid (upper or lower) is not detailed. This is appropriate for diagnoses such as "left eye squamous blepharitis" or "squamous blepharitis, left, unspecified."

• Ensure the documentation explicitly states "squamous" blepharitis and specifies the "left eye."
• If the laterality is unspecified, use the appropriate unspecified laterality code.
• If the specific eyelid (upper or lower) is documented, select a more precise code from the H01.02- subcategory.