An assistant at surgery is a physician who actively assists the physician in charge of a case in performing a surgical procedure.
Global surgery rules do not apply.
Modifier
Description
AS
Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery.
80
Assistant Surgeon: Surgical assistant services may be identified by adding the modifier 80 to the usual procedure number(s).
81
Minimum Assistant Surgeon: Minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
82
Assistant Surgeon (when qualified resident surgeon not available): The unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
Back to Modifier page.