- Spinal fusion — $4,824,574,100 (93.6 percent)
- Insertion, revision, replacement, removal of cardiac pacemaker or cardioverter/defibrillator — $6,451,133,300 (87.0 percent)
- Blood transfusion — $4,390,193,500 (75.2 percent)
- Skin graft — $819,062,600 (66.3 percent)
- Incision and drainage, skin and subcutaneous tissue — $731,839,200 (65.8 percent)
- Arthroplasty knee — $5,263,185,700 (64.0 percent)
- Enteral and parenteral nutrition — $1,108,212,800 (60.0 percent)
- Hemodialysis — $2,256,351,600 (49.7 percent)
- Percutaneous transluminal coronary angioplasty (PTCA) — $9,394,141,100 (44.7 percent)
- Abdominal paracentesis — $980,789,500 (41.1 percent)
Source: AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample, 2000 and 2004.