Corneal deposits in metabolic disorders, bilateral

This code signifies the presence of abnormal deposits on the cornea of both eyes, which are a manifestation of an underlying systemic metabolic disorder. These deposits can affect corneal clarity and vision, and their composition varies depending on the specific metabolic condition.

Use this code when documentation specifies bilateral corneal deposits directly attributed to a diagnosed metabolic disorder, such as cystinosis, mucopolysaccharidoses, or Fabry disease. The physician's notes should clearly link the corneal findings to the systemic metabolic condition.

• Ensure the documentation explicitly states "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Always code the underlying metabolic disorder first, as it is the primary etiology for the corneal deposits.
• Differentiate from other types of corneal deposits not related to metabolic disorders, such as age-related arcus senilis or band keratopathy.