Preglaucoma, unspecified, bilateral

This code signifies a pre-glaucomatous state affecting both eyes, where the specific type of preglaucoma is not documented. It indicates the presence of risk factors or early signs of glaucoma without definitive evidence of optic nerve damage or visual field loss. This condition suggests a patient is at increased risk for developing glaucoma.

Use this code when documentation indicates bilateral preglaucoma without further specification of the type (e.g., ocular hypertension, anatomical narrow angles). This applies to patients with elevated intraocular pressure (IOP) or suspicious optic disc findings in both eyes, but who do not yet meet the diagnostic criteria for glaucoma. Supporting documentation would include ophthalmic exam findings noting bilateral risk factors for glaucoma.

• Do not use this code if a more specific type of preglaucoma (e.g., ocular hypertension, pigmentary preglaucoma) is documented; use the appropriate specific code instead.
• Ensure documentation clearly states "bilateral" and "unspecified" to support this code.
• This code is often accompanied by codes for risk factors such as elevated intraocular pressure (H40.0x) or suspicious optic disc findings (H47.2x).