Squamous blepharitis right eye, upper and lower eyelids

This code signifies inflammation of the eyelid margins, specifically affecting the squamous (outermost) layer, in both the upper and lower eyelids of the right eye. It indicates a chronic form of blepharitis characterized by scaling and crusting along the lash line.

Apply this code when documentation specifies squamous blepharitis impacting both the upper and lower eyelids of the right eye. Supporting documentation should clearly differentiate it from ulcerative or other forms of blepharitis and specify the laterality and affected eyelid portions.

• Ensure documentation explicitly states "squamous" blepharitis and specifies "right eye, upper and lower eyelids."
• Do not use this code if the blepharitis is described as ulcerative, angular, or unspecified.
• Verify laterality; codes exist for the left eye and bilateral involvement.