Malignant neoplasm of unspecified lacrimal gland and duct

This code signifies a cancerous tumor originating in the tear-producing gland or its drainage system when the specific side (right or left) is not documented. It indicates an uncontrolled growth of abnormal cells within the lacrimal apparatus, which is responsible for tear production and drainage.

Apply this code when medical record documentation confirms a primary malignant neoplasm of the lacrimal gland or duct, and the laterality (left or right) is explicitly stated as unspecified or unknown. This is appropriate when the physician's diagnosis lacks laterality, or when diagnostic imaging or pathology reports do not specify the affected side.

• Avoid using this code if laterality is documented; instead, choose the more specific C69.51 (right) or C69.52 (left).
• Always review pathology reports and operative notes for definitive diagnoses and laterality.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any relevant secondary diagnoses.