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Modifier 47 Fact Sheet


  • Anesthesia by surgeon: Regional or general anesthesia provided by the surgeon may be reported by adding modifier 47 to the basic service. (This does not include local anesthesia.)

    NOTE: Modifier 47 would not be used as a modifier for the Anesthesia procedures.

Appropriate Usage

  • Modifier 47 is used to report anesthesia by the attending or assistant surgeon.

Inappropriate Usage

  • Use of this modifier by the anesthesiologist is not permitted.
  • Appending this modifier to CPT codes 00100 through 01999 Anesthesia Codes
  • Use of this modifier for local anesthesia
  • Do not use this modifier if the surgeon is monitoring general anesthesia performed by an anesthesiologist, CRNA, resident, or intern.
  • Do not append modifier 47 to the CPT code when the surgeon administers the regional or general anesthesia. This service is not covered by Medicare.
  • Do not report modifier 47 with a surgical procedure code when the surgeon provides moderate sedation.

Procedure Codes

  • Surgery services/procedures

Additional Information

  • If the same physician performs anesthesia and surgery, the anesthesia is considered inclusive with the surgery. No separate or additional benefit is available for the anesthesia.
  • This is considered an informational only modifier.