Macular keratitis, left eye

This code signifies an inflammatory condition affecting the cornea, specifically characterized by opacities or infiltrates in the macular region of the left eye. Macular keratitis can result from various etiologies, including infection, immune response, or trauma, leading to impaired vision.

Use this code when documentation clearly indicates inflammation and opacification of the corneal macula in the patient's left eye. This diagnosis is typically supported by slit-lamp examination findings detailing the location and nature of the corneal lesion.

• Ensure laterality is accurately documented and coded; this code specifies the left eye.
• Distinguish from other forms of keratitis (e.g., peripheral, diffuse) based on the precise location of the corneal involvement.
• If the underlying cause of the macular keratitis is known (e.g., bacterial, viral), code the causative organism first, followed by this code.