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    v1.0.30
    OpenPayerBilling CodesEndovascular RevascularizationCPT cpt-37237-add-on-endovascular-stent-placement
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    CPT 37237: Endovascular Arterial Stent Placement, Add-On

    Medicare pays $1266 on average nationally for this procedure.

    CPT code 37237 describes an add-on endovascular stent placement performed with catheter-based access following stent insertion in a separate artery; the service type is an endovascular stent placement (add-on) and the typical site of service is an interventional radiology or vascular surgery setting performed in an operating room or interventional suite using percutaneous or open arterial access.

    For related coverage guidance, see recent payer policy updates: Automated Ambulatory Blood Pressure Monitoring for Diagnosis of Hypertension in Patients with Elevated Office Blood Pressure, Cardiology - Ivabradine, Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA).

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with symptomatic multivessel peripheral or visceral arterial disease undergoing endovascular treatment. For example, a 68-year-old man with lifestyle-limiting claudication and critical limb ischemia is brought to the angiography suite. Diagnostic angiography demonstrates a significant stenosis in the femoropopliteal segment and a separate significant stenosis in the ipsilateral popliteal artery. The interventional vascular surgeon or interventional radiologist obtains vascular access (percutaneous common femoral artery access), performs angioplasty and deploys a stent in the first target artery. Upon completion, the team advances a catheter and deploys an additional stent in a second, separate arterial segment during the same session. The encounter includes pre-procedure consent, intraprocedural imaging with fluoroscopy and contrast, device deployment, hemostasis of access site, and immediate post-procedure assessment.

    Typical site of service: hospital-based interventional radiology or vascular surgery suite, ambulatory surgical center, or inpatient operating room for open access when required.

    Service type: endovascular stent deployment — add-on stent placement to a separate artery performed during the same session following initial stent insertion.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    37236Transcatheter placement of intravascular stent(s), peripheral artery(ies), initial vesselOften reported for the first stented artery in a session; 37237 is the add-on for a second separate artery.
    37238Transcatheter placement of intravascular stent(s), peripheral artery(ies), each additional vessel (List separately in addition to code for primary procedure)Used for additional vessels beyond those reported with 37236/37237 per payer rules; may describe further add-on deployments.
    36147Introduction of needle and/or catheter, 2nd order branch of arterial systemMay describe selective catheterization required during complex peripheral interventions.
    76937Ultrasound guidance for vascular accessUsed when ultrasound guidance is performed for percutaneous arterial access at the start of the procedure.
    92928Percutaneous transluminal coronary stent placement, single major coronary artery or branchDifferent vascular bed (coronary) — listed for differentiation; not reported with peripheral stent codes.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    79Modifier 79 indicates a surgical procedure performed during the postoperative global period of a prior surgery that is unrelated to the original procedure. Per AMA/CPT and CMS guidance, it is…- Use modifier 79 when the same physician (or same‑specialty physician in the same group) performs a surgical procedure during the postoperative global period of a prior surgery and the new procedure…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    208D00000X
    207P00000X
    207L00000X
    261QE0700X
    1223X2210X
    2080P0214X
    1835P0200X
    2255A2300X

    Related Payer Policy Updates

    Specialty: Cardiology1 / 3

    10 rows

    PolicyPayerEffective Date
    Automated Ambulatory Blood Pressure Monitoring for Diagnosis of Hypertension in Patients with Elevated Office Blood PressureBluecross Idaho2026-11-01
    Cardiology - IvabradineCigna2026-10-15
    Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA)univerahealthcare2026-10-15
    Percutaneous Ventricular Assist DeviceUnitedHealthcare2026-10-01
    Cardiovascular Disease Risk AssessmentOscar Health2026-10-01
    Biomarkers for Myocardial Infarction and Chronic Heart FailureOscar Health2026-10-01
    Multiple Procedure Payment Reduction for Diagnostic Cardiovascular ProceduresBlue Cross Blue Shield - Maine2026-10-01
    Left Atrial Appendage Closure Devicesexcellus_health_plan_inc2026-09-17
    Left Atrial Appendage Closure Devicesuniverahealthcare2026-09-17
    Cardiac Omnibus CodesCigna2026-09-15

    Related Codes

    CPT-37236-ARTERIAL-STENT-PLACEMENT-ENDOVASCULAR

    CPT 37236: Arterial Stent Placement via Catheter

    CPT-37238-VENOUS-STENT-PLACEMENT-CATHETER

    CPT 37238: Venous Stent Placement, Percutaneous or Open

    CPT-37239-SECONDARY-VENOUS-STENT-INSERTION-ENDOVASCULAR

    CPT 37239: Venous Stent Placement, Additional Vein

    CPT-37246-PERCUTANEOUS-BALLOON-ANGIOPLASTY-ARTERY

    CPT 37246: Percutaneous Balloon Angioplasty of Non-Coronary Artery

    CPT-37247-TRANSLUMINAL-BALLOON-ANGIOPLASTY-ADDITIONAL-ARTERIES

    CPT 37247: Transluminal Balloon Angioplasty, Additional Arteries

    CPT-37249-PERIPHERAL-VEIN-BALLOON-ANGIOPLASTY-ADDITIONAL-VEINS

    CPT 37249: Transluminal Balloon Angioplasty of Additional Veins

    CPT-37254-ILIAC-ARTERY-ANGIOPLASTY-BALLOON-DILATION

    CPT 37254: Iliac Artery Angioplasty (Balloon)

    CPT-37256-ILIAC-ARTERY-COMPLEX-LESION-ANGIOPLASTY

    CPT 37256: Iliac Artery Angioplasty for Complex Occlusion

    CPT-37259-ILIAC-ARTERY-STENT-PLACEMENT-ADDITIONAL-VESSEL

    CPT 37259: Iliac Artery Stent Placement, Additional Vessel

    CPT-37262-ILIAC-INTRAVASCULAR-LITHOTRIPSY-DURING-REVASCULARIZATION

    CPT 37262: Intravascular Lithotripsy of One Iliac Artery

    Showing 1–10 of 21

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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