Corneal disorder due to contact lens, left eye

This diagnosis code signifies an abnormality or disease of the cornea specifically caused by contact lens wear in the patient's left eye. This can encompass a range of conditions such as corneal edema, infiltrates, or abrasions directly attributable to contact lens use or misuse.

Apply this code when documentation clearly indicates a corneal pathology in the left eye that is a direct consequence of contact lens wear. This includes complications arising from improper lens fit, extended wear, poor hygiene, or allergic reactions to lens materials or solutions.

• Ensure the medical record explicitly states the corneal disorder is due to contact lens use and specifies the left eye.
• Do not use this code for general corneal disorders not linked to contact lenses; consider codes from H16.- or H18.- for other etiologies.
• If a specific type of corneal disorder is identified (e.g., corneal ulcer), code that specific condition first, followed by this code as an external cause or secondary diagnosis if applicable, depending on the specific disorder and payer guidelines.