Preglaucoma, unspecified, left eye

This code signifies a condition where the left eye exhibits signs suggestive of developing glaucoma, but definitive diagnostic criteria for glaucoma have not yet been met. It indicates a state of elevated risk for glaucoma progression, often characterized by suspicious optic nerve appearance or intraocular pressure readings that are not yet pathologically high.

Use this code when documentation specifies "preglaucoma" or "glaucoma suspect" for the left eye, without further specificity regarding the type of preglaucoma. This applies to patients undergoing monitoring for potential glaucoma development based on clinical findings that do not yet warrant a specific glaucoma diagnosis.

• Ensure documentation clearly specifies "left eye" for accurate laterality.
• Avoid using this code if a specific type of preglaucoma (e.g., ocular hypertension, primary open-angle glaucoma suspect) is documented; use the more specific code.
• This code is typically used for surveillance and monitoring, not for active treatment of established glaucoma.