AMA CPT® Assistant - 2008 Issue 2 (February)
Surgery: Musculoskeletal System (February 2008)
February 2008 page 8e Surgery: Musculoskeletal System, 20930, 20931, 20936, 20937, 20938 (Q&A) Question: What is the rationale for relocating the bone graft for spinal surgery codes 20930, 20931, 20936, 20937, and 20938 to the add-on code list (Appendix D)? Answer: The CPT Editorial Panel concluded that codes 20930-20938 are characteristic of add-on codes rather than modifier 51 exempt codes because they are always performed with a defined base code or codes included in parenthetical notes. Add-on codes and modifier 51 exempt codes are similar in that neither should be subject to multiple procedure reductions. Surgery: Musculoskeletal System...
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