Low-tension glaucoma, bilateral, mild stage

This code signifies a form of primary open-angle glaucoma where optic nerve damage and visual field loss occur despite intraocular pressure (IOP) consistently remaining within the statistically normal range (typically below 21 mmHg). It indicates that both eyes are affected and the disease progression is currently at a mild stage.

Apply this code when documentation confirms a diagnosis of low-tension glaucoma affecting both eyes, with evidence of mild optic nerve damage or visual field defects. The physician's assessment must explicitly state the "mild" stage of the disease.

• Ensure documentation specifies "low-tension" or "normal-tension" glaucoma, not just general open-angle glaucoma.
• Verify laterality (bilateral) and the stage of glaucoma (mild) are clearly documented by the ophthalmologist.
• Do not use this code if the patient has secondary glaucoma or if the stage is not explicitly documented as mild.