Primary open-angle glaucoma, left eye, stage unspecified

This code signifies a diagnosis of primary open-angle glaucoma affecting the left eye, where the specific stage of the disease progression has not been documented by the physician. Primary open-angle glaucoma is a chronic, progressive optic neuropathy characterized by optic nerve damage and visual field loss, typically associated with elevated intraocular pressure.

Use this code when the patient has a confirmed diagnosis of primary open-angle glaucoma in the left eye, but the medical record does not specify the stage (e.g., mild, moderate, severe, indeterminate). This code is appropriate when the physician's documentation explicitly states "left eye" and "stage unspecified" or provides insufficient detail to assign a more specific stage code.

• Ensure documentation clearly specifies "left eye" and the absence of a defined stage.
• Avoid using this code if the stage of glaucoma is documented; instead, select the appropriate stage-specific code.
• Always review the entire medical record for any mention of glaucoma stage before defaulting to "unspecified."