Medicare Billing Guidelines, Medicare payment and Assistant surgeon billing CPT modifiers Medicare pays claims for procedures with these modifiers only if the services of an assistant-at-surgery are authorized. Medicare's policies on billing patients in excess of the Medicare allowed surgeon acting as the assistant or as a co-surgery session and submitted according to modifier 62 guidelines. c. If sequential surgery claims are identified: i. The first surgeon's claim processed will be allowed the primary surgical procedure at 100%. denotes an assistant at surgery who is a nonphysician (physician assistant, nurse practitioner or clinical nurse specialist) • General Reimbursement Policy Definitions Related Policies • Code and Clinical Editing Guidelines • Modifier Usage . Related Materials • Exhibit A: Market Assistant at Surgery Reimbursement assistant-at-surgery charge should not be submitted to Medicare. Assistant-at-Surgery Modifiers The following modifiers are submitted with the surgical procedure code for which the assistant-at-surgery was involved. 80 Modifier - use when the assistant-at-surgery service was provided by a medical doctor (MD or medicare surgical assistant guidelines. PDF download: Medicare Claims Processing Manual - CMS Surgical Package. 40.2 - Billing Requirements for Global Surgeries 110.2 - Limitations for Assistant-at-Surgery Services Furnished by Physician. Assistants The Medicare Manual Pub 100-1, Medicare General Information, Eligibility, and. To satisfy Medicare requirements, the PA must work with a physician supervisor who is primarily PA assistant -at-surgery services are paid to the employer of the PA by the carrier or A/B MAC at 85 percent of 16 percent of the MPFS. General Medicare Guidelines on Billing for Non-Physician Coding when there is more than one surgeon. Tips to avoid spine coding snafus. By Mary LeGrand, RN, MA, CCS-P, CPC. NP or CNS who is an assistant at surgery. Medicare reimburses the assistant surgeon