CPT 00350: Anesthesia for Major Vessels of the Neck, Unspecified
CPT code 00350 designates anesthesia services for procedures on the major vessels of the neck that are not otherwise specified. It captures perioperative anesthesia care for vascular interventions involving carotid and other major cervical vessels, a high-acuity service with implications for resource use, perioperative risk management, and billing specificity across national payers. Major carriers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare.
Readers will find a concise overview of the clinical context for 00350, common diagnostic scenarios that map to neck vessel interventions, and the coding relationships that affect anesthesia reporting for these procedures. The publication summarizes payer coverage considerations, typical sites of service, and related anesthesia procedure codes to help delineate service scope. It also highlights where coding specificity matters for claim adjudication and when related codes may be used for simpler or more complex neck vessel anesthesia services. Data not available in the input are explicitly noted where applicable.
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Billing Code Overview
CPT code 00350 describes anesthesia services provided for procedures on the major vessels of the neck, not otherwise specified. The service type is anesthesia for major vascular procedures of the neck, typically performed when surgical or endovascular interventions involve the carotid or other major cervical vessels. The typical site of service is an operating room or procedural suite where monitored anesthesia care or general anesthesia is delivered for vascular neck procedures.
Clinical & Coding Specifications
Clinical Context
A 72-year-old male with hypertension, hyperlipidemia, and recent transient ischemic attack is scheduled for carotid endarterectomy for high-grade right internal carotid artery stenosis. The surgical team plans an operative exposure of the major vessels of the neck under general endotracheal anesthesia. Preoperative evaluation by the anesthesia team includes airway assessment, review of antiplatelet therapy, optimization of blood pressure, and discussion of neurologic monitoring (awake testing not planned; intraoperative cerebral oximetry and shunt readiness available). On the day of surgery the anesthesiologist directs induction, endotracheal intubation, invasive arterial monitoring, and maintenance of anesthesia, provides hemodynamic management during carotid clamping/unclamping, and participates in immediate postoperative handoff to the post-anesthesia care unit or intensive care unit as indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when anesthesia management required substantially greater effort or complexity than typical for procedures on major neck vessels. |
23 | Unusual anesthesia | Use when general anesthesia is medically necessary for a procedure that is usually performed with local/monitored anesthesia care. |
50 | Bilateral procedure | Use if identical procedures are performed bilaterally on major neck vessels during the same operative session. |
52 | Reduced services | Use when the anesthesia service is partially reduced or not completed as planned. |
53 | Discontinued procedure | Use when the anesthesia service is terminated due to extenuating circumstances prior to completion. |
59 | Distinct procedural service | Use when another distinct anesthesia-qualifying procedure is performed in addition to the primary neck vessel service. |
62 | Two surgeons | Use when two qualified surgeons operate together on the same operative field and anesthesia documentation supports concurrent surgeon involvement. |
77 | Repeat procedure by another physician | Use when an anesthesia service is repeated by a different anesthesiologist on the same day for the same patient. |
78 | Unplanned return to the operating/procedure room | Use when the patient returns for a related procedure requiring additional anesthesia during the global period. |
79 | (Not in provided list) | Data not available in the input. |
AA | Anesthesia by physician | Use to indicate the anesthesia service was personally performed by an anesthesiologist. |
AD | Medical supervision by a physician; more than four concurrent anesthesia procedures | Use when the anesthesiologist supervises multiple concurrent anesthesia procedures beyond typical single-patient management. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist service for qualified non-physician anesthetist | Use when a medically directed anesthesiologist is involved and the service is provided under qualifying supervision. |
QK | Medical direction of two, three, or four concurrent anesthesia procedures involving certified registered nurse anesthetists | Use when the anesthesiologist medically directs CRNAs for concurrent cases. |
QX | CRNA service: CRNA with medical direction by a physician | Use when a CRNA furnishes the anesthesia service with physician medical direction. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207L00000X | Anesthesiology | Physicians who provide anesthesia services and medical direction for perioperative care. |
367500000X | Certified Registered Nurse Anesthetist | CRNAs who may provide or assist in anesthesia delivery for neck vascular procedures. |
207LC0200X | Critical Care Medicine (Anesthesiology) | Anesthesiologists with critical care training often manage complex hemodynamic and neurologic issues perioperatively. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
I65.21 | Occlusion and stenosis of right carotid artery | Indicates right-sided carotid disease often requiring surgical intervention such as carotid endarterectomy with anesthesia services coded by 00350. |
I65.22 | Occlusion and stenosis of left carotid artery | Indicates left-sided carotid disease that can necessitate operative exposure and anesthesia for repair or endarterectomy. |
I65.23 | Occlusion and stenosis of bilateral carotid arteries | Reflects bilateral carotid pathology; anesthesia planning may account for increased neurologic risk and monitoring. |
I65.29 | Occlusion and stenosis of unspecified carotid artery | Used when laterality is not specified in the record but surgical anesthesia services are provided for carotid vessel procedures. |
I66.9 | Occlusion and stenosis of unspecified cerebral artery | Represents cerebrovascular occlusion/stenosis that may be associated with neck vessel disease and operative vascular management requiring anesthesia. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
00352 | Anesthesia for procedures on major vessels of neck; simple ligation | Related alternative code used when the surgical service is limited to simple ligation rather than more extensive vascular reconstruction; used to reflect differing anesthesia complexity. |