Pre-operative pulmonary surgery services for preparation for lvrs, 1 to 9 days

G0304 (“Pre-operative pulmonary surgery services for preparation for lvrs, 1 to 9 days”) is a code used to bill for equipment, supplies, drugs, or non-physician services in the HCPCS Level II code set. Whether it is billed — and whether a payer covers it — depends on the clinical setting, documentation, and plan rules.