Malignant neoplasm of unspecified cornea

This code signifies a cancerous tumor originating in the cornea, the transparent outer layer of the eye, when the specific side (right or left) is not documented. It represents an uncontrolled growth of abnormal cells within the corneal tissue, requiring medical intervention.

Use this code when the medical record clearly indicates a primary malignant neoplasm of the cornea, but the laterality (right or left eye) is not specified by the provider. This diagnosis is often made following biopsy and histopathological confirmation of malignancy.

• Do not use this code if the laterality is documented; instead, select the more specific C69.11 (right) or C69.12 (left).
• Ensure documentation specifies "malignant" to differentiate from benign corneal tumors (e.g., D31.0-).
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, unless treatment is for a complication of the neoplasm.