• Modifiers
• –21 prolonged evaluation and management services: (09921)
  –22 unusual procedure services:
  -23 unusual anesthesia: unusual circumstances require the use of anesthesia
  -24 unrelated E&M service provided by the same physician during a postoperative period
  -25 significant, separately identifiable E&M service by the same physician
  -26 professional component: separate from technical component
  -32 mandated services:
  -47 anesthesia by surgeon: regional or general anesthesia provided by surgeon
  -50 bilateral procedure:
  -51 multiple procedures:
  -52 reduced procedures:
  -53 discontinued procedure:
  -54 surgical care only:
  -55 postoperative management only:
  -56 preoperative management only:
  -57 decision for surgery:
  -58 staged or related procedure or service by the same physician during the postoperative period
  -59 distinct procedural service:  use when no other modifier is appropriate
  -60 altered surgical field
  -62 two surgeons: equal work
  -66 surgical team:
  -76 repeat procedure by same physician:
  -77 repeat procedure by another physician:
  -78 return to the OR for a related procedure during the postoperative period:
  -79 unrelated procedure or service by the same physician during the postoperative period
  –80 assistant surgeon:
  -81 minimum assistant surgeon:
  -82  assistant surgeon when qualified resident surgeon not available
  TOC