Macular keratitis, bilateral

This code signifies an inflammatory condition affecting the central part of the cornea (macula) in both eyes. Macular keratitis is characterized by corneal opacities or infiltrates, often leading to impaired vision.

Apply this code when documentation specifies macular keratitis affecting both the right and left eyes. This diagnosis is typically made via slit-lamp examination confirming the presence of macular corneal involvement bilaterally.

• Ensure documentation explicitly states "bilateral" involvement; otherwise, laterality-specific codes (H16.111, H16.112) or unspecified (H16.119) should be used.
• Do not confuse with other forms of keratitis (e.g., punctate, filamentary) unless the macula is specifically affected.
• Code any underlying cause of the keratitis (e.g., infectious agent) as an additional diagnosis, if known and documented.