CPT 01844: Anesthesia for Vascular Shunt Creation or Revision
CPT code 01844 denotes anesthesia services provided for vascular shunt procedures, including creation or revision of shunts commonly used for dialysis access. This code is used nationally to capture anesthesia professional work associated with operative management of patients receiving shunt placement or shunt revision. Accurate use of 01844 matters for clinical documentation, billing compliance, and appropriate payment for anesthesia time and complexity tied to vascular access surgeries.
Key payers considered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and service setting for 01844, a summary of which payers cover the service, and what typical billing considerations are involved. Where available, the publication provides benchmark information and policy updates that affect anesthesia billing for vascular shunt procedures, highlights documentation elements that support the code, and outlines common modifiers associated with anesthesia services.
This national-level summary is intended for clinicians, billing professionals, and policy analysts seeking a clear, practical briefing on CPT code 01844 and its role in perioperative anesthesia billing for vascular shunt creation and revision.
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Billing Code Overview
CPT code 01844 describes anesthesia services for vascular shunt procedures, including creation or revision of vascular shunts such as those used for dialysis access. The service covers anesthesia care provided by an anesthesia professional for intraoperative management of patients undergoing shunt placement or shunt revision.
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Service type: Anesthesia services for vascular shunt creation or shunt revision
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Typical site of service: Operating room or other procedural suite where vascular shunt surgery is performed
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with end-stage renal disease on hemodialysis is scheduled for revision of a malfunctioning arteriovenous (AV) graft/shunt. The patient presents with recurrent thrombosis and poor dialysis flow despite prior interventions. Preoperative evaluation by the anesthesia team documents significant cardiovascular comorbidity (controlled hypertension, ischemic heart disease), and the patient is staged as an ASA P3. The procedure is performed in an outpatient ambulatory surgery center or hospital operating room under monitored anesthesia care or general anesthesia depending on clinical status and surgeon preference. Intraoperative tasks include vascular exposure, thrombectomy, patch angioplasty or synthetic graft revision, achievement of hemostasis, and assessment of flow. Postoperative transfer to the PACU follows standard monitoring for airway, hemodynamics, and vascular access function. Typical documentation includes preoperative assessment, intraoperative anesthetic record with agents and monitoring, any anesthetic complications, and disposition note confirming stable transfer and functioning dialysis access or plan for further intervention.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the anesthesia service required substantially greater work than typically needed (document rationale). |
23 | Unusual anesthesia | Use when anesthesia is medically contraindicated or unusually difficult due to preexisting condition but procedure performed. |
50 | Bilateral procedure | Use if truly bilateral vascular shunt procedures are performed during the same anesthetic. |
52 | Reduced services | Use when the anesthetic service was partially reduced or a portion of the planned procedure not completed. |
53 | Discontinued procedure | Use when the procedure is terminated due to patient-related or intraoperative reasons after anesthesia initiated. |
54 | Surgical care only | Use when the billing practitioner provided only the surgical portion and another billed the anesthesia portion (rare for anesthesia codes; used for surgeons). |
55 | Postoperative management only | Use when anesthesiologist provides only postoperative care (rare for primary anesthesia billing). |
62 | Two surgeons | Use when two surgeons with different specialties work together as primary surgeons — applicable if anesthesia documentation notes shared technical complexity influencing anesthetic plan. |
78 | Unplanned return to OR | Use if patient returns to the OR for related procedure during the global period and additional anesthesia is required. |
AA | Anesthesia by anesthesiologist | Use when a physician anesthesiologist personally performs the anesthesia services. |
AD | Medical supervision by a physician — more than four concurrent anesthesia cases | Use when the physician supervises a qualified non-physician anesthetist managing multiple cases. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist service | Use when these providers bill under their allowed scope for perioperative services as permitted. |
QK | Medical direction by a qualified physician — more than four concurrent anesthesia cases | Use when physician provides medical direction under qualifying circumstances. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
2084P0800X | Anesthesiology | Primary providers for billing 01844 services. |
207L00000X | Vascular Surgery | Surgeons performing AV shunt creation or revision. |
207K00000X | General Surgery | Surgeons who may perform vascular access revisions in some settings. |
208000000X | Critical Care Medicine | Consultants for high-risk patients requiring complex perioperative management. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
I12.9 | Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease | Common comorbidity in dialysis patients undergoing AV shunt revision; affects anesthetic risk and fluid management. |
N18.6 | End stage renal disease | Primary indication for hemodialysis access and reason for AV shunt creation or revision; central to procedure necessity. |
I87.1 | Stenosis of vein | Venous stenosis can cause access dysfunction prompting shunt revision. |
T82.7XXA | Infection and inflammatory reaction due to other vascular prosthetic devices, implants and grafts, initial encounter | Graft infection may necessitate revision or removal under anesthesia. |
I74.3 | Embolism and thrombosis of arteries of the lower extremities | Thrombosis of vascular access or related arterial thrombotic events that require thrombectomy or revision. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
36830 | Revision, arteriovenous fistula; with thrombectomy, limited | Often performed during shunt revision for thrombosed AV fistulas; may be the primary surgical procedure for which anesthesia 01844 is reported. |
36831 | Revision, arteriovenous fistula; with thrombectomy, extensive | Used for more complex thrombectomy/revision procedures requiring longer operative time and more complex anesthetic planning. |
36820 | Creation of arteriovenous fistula, forearm | May be performed in the same episode of care as shunt revision or when new access is created if revision fails; impacts anesthesia time and technique. |
36825 | Revision and/or repair of arteriovenous fistula or graft | A commonly paired surgical CPT describing the work that prompts anesthesia billing under 01844. |
36465 | Repair of arteriovenous fistula or shunt | Minor repairs or revisions that may accompany the main procedure; alters anesthetic duration and monitoring requirements. |