Corneal staphyloma, left eye

This code signifies a bulging or thinning of the left corneal tissue, often due to increased intraocular pressure or inflammation, resulting in a localized ectasia. This condition can lead to visual impairment and is typically associated with underlying ocular pathologies.

Apply this code when documentation clearly indicates a diagnosis of corneal staphyloma affecting the patient's left eye. Supporting documentation would include ophthalmological examination findings detailing the location and nature of the staphyloma.

• Ensure laterality is accurately documented and coded; this code is specific to the left eye.
• Distinguish from corneal ectasia not specifically described as staphyloma, which may fall under other H18.7 subcategories.
• Code any underlying conditions causing the staphyloma, such as glaucoma or severe keratitis, as additional diagnoses.