The NCCI Policy Manual describes a modifier used to indicate that a procedure was distinct or independent from another non-E/M service performed on the same day, for example at a separate anatomical site, when the two services would otherwise be bundled. Which modifier serves this distinct-procedural-service purpose?
- AModifier 51, appended to report that multiple procedures were performed in the same session by the same provider.
- BModifier 22, appended to report that the work of the procedure was substantially greater than typically required.
- CModifier 59, appended to report a distinct procedural service that is separate from other services performed the same day. Correct
- DModifier 76, appended to report that a procedure was repeated by the same physician after an earlier service.
Why A is wrong: Tempting because modifier 51 also applies when several procedures occur in one session, but it signals multiple procedures for payment ranking, not that a bundling edit should be bypassed.
Why B is wrong: Tempting because it attaches to a surgical procedure, but modifier 22 reports increased procedural work, not that a service is distinct from a bundled companion service.
Why C is correct: Correct: modifier 59 is the NCCI distinct-procedural-service modifier, used when documentation shows a different session, site, or lesion so an otherwise bundled edit does not apply.
Why D is wrong: Tempting because both repeats and distinct services involve a second procedure, but modifier 76 reports a repeat of the same service, not a separate or unbundled one.