Conjunctival pigmentations, left eye

This code signifies the presence of abnormal discoloration or pigmented spots on the conjunctiva, specifically affecting the left eye. These pigmentations can vary in origin, including melanin deposits, hemosiderin, or other exogenous substances. It indicates a finding of altered conjunctival tissue color rather than an inflammatory or infectious process.

Use this code when documentation clearly indicates a diagnosis of conjunctival pigmentation observed in the left eye. This is appropriate for conditions such as conjunctival nevi, racial melanosis, or other benign pigmentary changes. Supporting documentation should specify the location as the left eye and confirm the nature of the finding as pigmentation.

• Differentiate from inflammatory conditions like conjunctivitis, which would use codes from H10.-.
• Ensure the laterality (left eye) is explicitly documented to support this specific code.
• If the pigmentation is due to a specific underlying systemic condition, code the underlying condition first, if applicable.