CPT 01650: Anesthesia for Arteries of Shoulder and Axilla
CPT code 01650 designates anesthesia services for procedures involving the arteries of the shoulder and axilla not otherwise classified by other anesthesia codes. This code is relevant for anesthesiologists, certified registered nurse anesthetists, and facilities that provide perioperative care for vascular procedures in the shoulder/axilla region. Nationally, accurate use of this code matters for clinical documentation, appropriate billing, and aligning anesthesia service descriptions with the complexity and location of vascular surgery. Key payers examined include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find a concise overview of the code’s clinical scope, typical sites of service, and the payer set considered in the analysis. The publication provides context for matching anesthesia service descriptors to operative procedures, highlights common clinical scenarios where 01650 applies, and explains related procedural links for surgical services on the upper extremity. Data not available in the input is noted where applicable. This resource is intended to clarify the clinical intent and billing context of CPT code 01650 for national audiences across clinical, coding, and revenue-cycle functions.
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Billing Code Overview
CPT code 01650 describes anesthesia services provided for a surgical procedure on the arteries of the shoulder and axilla that is not otherwise described by another anesthesia code. The service type is anesthesia for vascular procedures of the shoulder/axilla. The typical site of service is an operating room or procedural suite where vascular surgery on the shoulder and axilla is performed.
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient with chronic knee pain and mechanical symptoms presents for arthroscopic knee surgery (e.g., partial meniscectomy or chondroplasty) under general or regional anesthesia. The anesthesia provider documents a tailored anesthetic to support arthroscopy of the knee(s), including preoperative evaluation, intraoperative management of anesthesia depth and hemodynamics, and postoperative emergence and pain control. Typical workflow: pre-anesthesia assessment in preoperative holding with review of comorbidities and medications; performance of regional nerve block (such as femoral or adductor canal block) or induction of general anesthesia in the operating room; intraoperative anesthetic maintenance, airway management, and physiologic monitoring during arthroscopy; communication with the surgical team for procedural events; and handoff to post-anesthesia care unit (PACU) staff with documented pain plan and postoperative analgesics. Typical site of service is an ambulatory surgery center or hospital outpatient surgery unit. The service type is anesthesia for a procedure on the arteries of the shoulder and axilla as described by 01650 when no other anesthesia code accurately describes the specific arterial procedure performed in that anatomic region; this may apply when shoulder/axillary arterial repair or vascular procedure is performed concurrently with orthopaedic procedures and requires specialized anesthetic care.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when anesthesia required substantially greater work or increased complexity beyond typical for the procedure. |
23 | Unusual anesthesia | Use when general anesthesia is medically necessary and ordinarily not required for the procedure. |
50 | Bilateral procedure | Use when identical procedures are performed on both sides and anesthesia billing supports bilateral service. |
52 | Reduced services | Use when the anesthesia service is partially reduced or not completed as planned. |
53 | Discontinued procedure | Use when the anesthesia was provided but the procedure was terminated for clinical reasons. |
62 | Two surgeons | Use when two surgeons are necessary and concurrently involved in the operative procedure requiring coordinated anesthesia care. |
78 | Unplanned return to OR | Use when patient returns to the operating room for a related procedure during the postoperative global period. |
AA | Anesthesia by anesthesiologist | Use when care is personally performed by a physician anesthesiologist. |
AD | Medical supervision by MD non-anesthesiologist | Use when the service is supervised by a physician who is not an anesthesiologist. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist service | Use when a qualifying non-physician practitioner performs the anesthesia service under appropriate supervision. |
QK | Medical direction of two or more CRNAs by a physician | Use when a physician medically directs multiple CRNAs for the anesthesia service. |
QX | CRNA service: CRNA attests to medical direction by physician | Use when a CRNA provides anesthesia under physician medical direction and documents accordingly. |
QS | Monitored anesthesia care service | Use when monitored anesthesia care (MAC) is provided and reportable per payer rules. |
QZ | CRNA service: without medical direction by physician | Use when a CRNA provides the service without physician medical direction as allowed by local rules. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207L00000X | Anesthesiology | Physician specialty typically billing 01650 when anesthesiologist provides direct care. |
367500000X | Certified Registered Nurse Anesthetist | CRNA providing anesthesia care; may bill under appropriate supervision or facility rules. |
207RA0401X | Anesthesiology Assistant | Anesthesiology assistant participating in care under physician supervision; documentation of role required. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M23.50 | Chronic instability of knee, unspecified knee | Indicates ligamentous instability contributing to mechanical symptoms addressed during arthroscopy. |
M17.11 | Unilateral primary osteoarthritis, right knee | Degenerative joint disease that can necessitate arthroscopic intervention for symptomatic relief or debridement. |
M17.12 | Unilateral primary osteoarthritis, left knee | Same clinical relevance as M17.11 for the opposite knee. |
S83.241A | Other tear of lateral meniscus, current injury, right knee, initial encounter | Acute meniscal tear commonly treated with arthroscopic meniscectomy or repair under anesthesia. |
S83.242A | Other tear of lateral meniscus, current injury, left knee, initial encounter | Acute lateral meniscal tear of the left knee requiring arthroscopic management and associated anesthesia. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
29881 | Arthroscopy, knee, surgical; with meniscectomy (medial OR lateral, including any meniscal shaving) | Common operative procedure performed during knee arthroscopy that may occur during the same anesthetic encounter. |
29880 | Arthroscopy, knee, surgical; with meniscectomy (medial AND lateral, including any meniscal shaving) | Used when meniscectomy is performed on both medial and lateral menisci during the same arthroscopy under the anesthetic provided. |
29876 | Arthroscopy, knee, surgical; synovectomy, major, 2 or more compartments | Represents more extensive intra-articular work that could increase anesthetic time and complexity associated with 01650 level anesthetic planning. |
29877 | Arthroscopy, knee, surgical; debridement/shaving of articular cartilage (chondroplasty) | Frequently performed adjunct procedure during diagnostic or therapeutic knee arthroscopy under the same anesthetic session. |