Ring corneal ulcer, unspecified eye

This code describes a corneal ulcer characterized by a ring-shaped infiltrate, indicating a specific pattern of inflammation and tissue loss on the cornea. This type of ulcer often suggests an immune-mediated response or a specific infectious etiology. The "unspecified eye" designation means the laterality of the condition is not documented.

Use this code when documentation clearly states a "ring corneal ulcer" but does not specify whether it affects the right or left eye. This code is appropriate when the physician's notes describe the characteristic ring-shaped appearance of the ulcer without further detail on the affected eye.

• Avoid using this code if the laterality (right or left eye) is documented; instead, choose the more specific code.
• Ensure the documentation explicitly mentions a "ring" morphology, not just a general corneal ulcer.
• Query the provider for laterality if possible to allow for more specific coding.