Squamous blepharitis left eye, upper and lower eyelids

This code signifies inflammation of the eyelid margins, specifically affecting the squamous cells, in both the upper and lower eyelids of the left eye. It is characterized by redness, scaling, and crusting along the lash line.

Use this code when documentation clearly indicates squamous blepharitis impacting both the upper and lower eyelids of the patient's left eye. This diagnosis is typically made during an ophthalmological examination.

• Ensure the documentation specifies "squamous" blepharitis and not another type (e.g., ulcerative, seborrheic).
• Verify laterality (left eye) and that both upper and lower eyelids are affected.
• Do not use if only one eyelid (upper or lower) is involved; a more specific code would be required.