Primary open-angle glaucoma, bilateral, mild stage

This code signifies a chronic, progressive optic neuropathy characterized by an open anterior chamber angle and elevated intraocular pressure, affecting both eyes. It specifically indicates that the disease has progressed to a mild stage, implying minimal optic nerve damage and visual field loss.

Apply this code when documentation confirms a diagnosis of primary open-angle glaucoma affecting both eyes, and the ophthalmologist or optometrist has explicitly staged the condition as "mild." Supporting documentation typically includes visual field tests, optic nerve head evaluation (e.g., OCT), and tonometry readings.

• Ensure the documentation clearly specifies "bilateral" involvement and "mild stage" for accurate coding.
• Do not use this code if only one eye is affected or if the stage is moderate, severe, or unspecified.
• Always sequence this code after any underlying systemic conditions that may contribute to or exacerbate the glaucoma, if applicable.