Anesthesiologist Assistant Anesthesia Codes in the ASC Setting
An anesthesiologist assistant (AA) delivers anesthesia care under the direction of a supervising anesthesiologist. In an ambulatory surgery center, AAs develop and implement the anesthetic plan, manage the airway and monitoring during the case, and help move patients safely through recovery.
Anesthesia for ASC procedures is reported with codes in the Anesthesia family, 00100 through 01999, organized by anatomic region rather than the individual surgical CPT. For example, 01402 covers anesthesia for knee arthroplasty and 00176 covers anesthesia for pharyngeal surgery. Facility payment and coverage depend on the underlying surgical procedure and its ASC-eligibility status. DataLily AI's procedure library tracks CPT-specific prior-authorization and documentation requirements so the anesthesia and surgical sides of a case stay aligned.
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Anesthesiologist Assistant codes(58)
- 01402Anesthesia knee arthroplasty
- 00176Anesthesia pharyngeal surgery
- 00192Anesthesia facial bone surgery
- 00211Anesthesia cran surgery hemotoma
- 00214Anesthesia skull drainage
- 00215Anesthesia skull repair/fract
- 00474Anesthesia surgery of rib
- 00524Anesthesia chest drainage
- 00540Anesthesia chest surgery
- 00542Anesthesia removal pleura
- 00546Anesthesia lung chest wall surgery
- 00560Anesthesia heart surgery without pump
- 00561Anesthesia heart surgery <1 yr
- 00562Anesthesia heart surgery with pmp age 1+
- 00567Anesthesia CABG with pump
- 00580Anesthesia heart/lung transplnt
- 00604Anesthesia sitting procedure
- 00632Anesthesia removal of nerves
- 00670Anesthesia spine cord surgery
- 00792Anes iper upr abdominal partial hptc
- 00794Anes iper upr abdominal pncrtect
- 00796Anes iper upr abdominal liver transplant
- 00802Anesthesia fat layer removal
- 00844Anesthesia pelvis surgery
- 00846Anesthesia hysterectomy
- 00848Anesthesia pelvic organ surgery
- 00864Anesthesia removal of bladder
- 00865Anesthesia removal of prostate
- 00866Anesthesia removal of adrenal
- 00868Anesthesia kidney transplant
- 00882Anesthesia major vein ligation
- 00904Anesthesia perineal surgery
- 00908Anesthesia removal of prostate
- 00932Anesthesia amputation of penis
- 00934Anesthesia penis nodes removal
- 00936Anesthesia penis nodes removal
- 00944Anesthesia vaginal hysterectomy
- 01140Anesthesia amputation at pelvis
- 01150Anesthesia pelvic tumor surgery
- 01212Anesthesia hip disarticulation
- 01214Anesthesia hip arthroplasty
- 01232Anesthesia amputation of femur
- 01234Anesthesia radical femur surgery
- 01272Anesthesia femoral artery surgery
- 01274Anesthesia femoral embolectomy
- 01404Anesthesia amputation at knee
- 01442Anesthesia knee artery surgery
- 01444Anesthesia knee artery repair
- 01486Anesthesia ankle replacement
- 01502Anesthesia lower leg embolectomy
- 01634Anesthesia shoulder joint amput
- 01636Anesthesia forequarter amput
- 01638Anesthesia shoulder replacement
- 01652Anesthesia shoulder vessel surgery
- 01654Anesthesia shoulder vessel surgery
- 01656Anesthesia arm-leg vessel surgery
- 01756Anesthesia radical humerus surgery
- 01990Support for organ donor
Do anesthesiologist assistants work in ambulatory surgery centers?
Yes. AAs are part of the anesthesia care team in many ASCs, working under the direction of a supervising anesthesiologist. They help with the anesthetic plan, airway management, intra-operative monitoring, and recovery, which supports the fast turnover an outpatient setting depends on.
What CPT codes do anesthesiologist assistants use?
Anesthesia care is reported with codes in the 00100-01999 family, organized by anatomic region and procedure rather than by the surgery's own CPT. Examples relevant to ASCs include 01402 for knee arthroplasty anesthesia, 00176 for pharyngeal surgery, and 00192 for facial bone surgery.
How does ASC place of service affect anesthesia billing?
Anesthesia provided in an ASC is reported with place of service 24. The anesthesia code reflects the service provided, while facility coverage and payment track the underlying surgical procedure. ASC-eligible procedures can be performed in an ASC, so it is worth confirming the surgical code's status alongside the anesthesia claim.