G0498 HCPCS - CHEMOTHERAPY ADMINISTRATION, INTRAVENOUS INFUSION TECHNIQUE; INITIATION OF INFUSION IN THE OFFICE/CLINIC SETTING USING OFFICE/CLINIC PUMP/SUPPLIES, WITH CONTINUATION OF THE INFUSION IN THE COMMUNITY SETTING (E.G., HOME, DOMICILIARY, REST HOME OR ASSISTED LIVING) USING A PORTABLE PUMP PROVIDED BY THE OFFICE/CLINIC, INCLUDES FOLLOW UP OFFICE/CLINIC VISIT AT THE CONCLUSION OF THE INFUSION