Glaucoma secondary to oth eye disorders, bi, severe stage

This code signifies a severe stage of glaucoma affecting both eyes, where the elevated intraocular pressure and optic nerve damage are a direct consequence of another underlying ocular condition. This secondary glaucoma can arise from various eye disorders such as uveitis, intraocular tumors, or retinal detachment, leading to significant vision impairment.

Apply this code when documentation clearly indicates bilateral glaucoma that is secondary to a specified other eye disorder and has progressed to a severe stage. The physician's notes should explicitly state the secondary nature of the glaucoma, the causative eye disorder, and the severity level (e.g., severe visual field loss, advanced optic nerve damage).

• Always code the underlying eye disorder first, followed by this code for the secondary glaucoma.
• Ensure documentation specifies "bilateral" and "severe stage" to support this specific code.
• Differentiate from primary open-angle glaucoma or glaucoma secondary to trauma, which have distinct codes.