Encounter for antineoplastic chemotherapy

This code signifies a patient's visit specifically for the administration of chemotherapy drugs designed to treat cancer. It indicates that the primary purpose of the encounter is the delivery of antineoplastic agents, rather than diagnosis or evaluation of the cancer itself.

Apply this code for outpatient or inpatient encounters where a patient receives a chemotherapy infusion, injection, or oral chemotherapy administration under medical supervision. This includes initial cycles, subsequent cycles, and maintenance chemotherapy treatments.

• Always sequence this code as the primary diagnosis when the sole purpose of the encounter is chemotherapy administration.
• Do not use this code for encounters focused on planning chemotherapy, managing side effects, or evaluating treatment response without actual drug administration.
• Report the specific cancer diagnosis (e.g., C-codes) as a secondary diagnosis to provide context for the chemotherapy.