Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.30
    OpenPayerBilling CodesVascular Endoscopy ProceduresCPT cpt-37501-vascular-endoscopy-cardiovascular-system
    Ask Trek AI about this page

    CPT 37501: Vascular Endoscopy, Cardiovascular System (Unlisted)

    CPT code 37501 reports an unlisted vascular endoscopy procedure of the cardiovascular system used when no specific CPT code exists for the vascular endoscopic service; typical service type is vascular endoscopy and the typical site of service is cardiac/cardiovascular catheterization lab or hospital-based endoscopy suite.

    For related coverage guidance, see recent payer policy updates: Positron Emission Tomography (PET) - Non-Oncologic Applications, Positron Emission Tomography (PET) Oncologic Applications, Magnetic Resonance Imaging (MRI) of the Prostate.

    Customize your policy alerts

    Sign up for cpt 37501 policy alerts

    Get alerted when payer policies referencing 37501 are released or updated.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • Facility ComparisonBeds, revenue & payer mix
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Clinical & Coding Specifications

    Clinical Context

    A 68-year-old patient with progressive lower extremity claudication and nonhealing ischemic ulcers is referred to vascular surgery for diagnostic vascular endoscopy of lower extremity arterial segments. The procedure is performed in a hospital-based outpatient surgical suite or ambulatory surgery center under monitored anesthesia care. Pre-procedure workflow includes history and physical, review of recent arterial duplex or CT angiography, informed consent, and verification of anticoagulation status. In the operating room the vascular surgeon introduces a flexible endoscope into the affected arterial segment via an access site (commonly femoral or popliteal), inspects the lumen for stenosis, intraluminal thrombus, plaque morphology, or intimal disease, documents findings with video and still images, and may obtain tissue or thrombus samples for pathology. Post-procedure workflow includes hemostasis at the access site, neurovascular checks, vital signs monitoring, discharge instructions, and coordination of follow-up for potential adjunctive interventions such as angioplasty or bypass if significant lesions are identified.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    36000Introduction of needle or intracatheter, veinAccess step for obtaining vascular entry when performing peripheral endoscopic procedures.
    36010Introduction of catheter, superior or inferior vena cava; diagnosticPerformed when central venous catheterization or venography is required as part of diagnostic evaluation.
    37220Revascularization, endovascular, open or percutaneous, arterial; initial treatment of iliac artery stenosis/occlusionTherapeutic endovascular treatment that may follow diagnostic vascular endoscopy if significant lesions are identified.
    37224Revascularization, endovascular, femoral-popliteal, single vesselCommon endovascular intervention following diagnostic findings in lower extremity arterial endoscopy.
    76000Fluoroscopic guidance for vascular proceduresImaging guidance commonly used during vascular endoscopy and endovascular interventions to document catheter/endoscope position and anatomy.

    Related Modifiers

    10 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    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…
    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…
    51Modifier –51 (Multiple Procedures) is used when the same provider performs multiple procedures in the same session to identify secondary, non‑exempt procedures and indicate payment reduction logic…- Use modifier -51 when the same provider performs multiple distinct procedures during the same patient encounter: report the highest‑valued procedure first (no modifier) and append -51 to…
    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…
    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…
    66Modifier 66 (Surgical Team) is used when three or more surgeons act as primary surgeons on a single, highly complex procedure. The AMA defines it for use when a surgical team — often composed of…- Use modifier 66 when three or more surgeons act as primary surgeons working collaboratively as a surgical team on a single, highly complex or difficult procedure (for example organ…
    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…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207VG0400X
    208800000X
    207RH0000X
    207LP2900X
    390200000X
    243U00000X
    2355A2700X
    207RC0000X

    Related Payer Policy Updates

    Specialty: Radiology/Diagnostic Imaging1 / 2

    10 rows

    PolicyPayerEffective Date
    Positron Emission Tomography (PET) - Non-Oncologic Applicationsuniverahealthcare2026-10-15
    Positron Emission Tomography (PET) Oncologic Applicationsuniverahealthcare2026-10-15
    Magnetic Resonance Imaging (MRI) of the Prostateuniverahealthcare2026-10-15
    Diagnostic and Therapeutic Radiology ServicesUnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion Analysis (for Nebraska Only)UnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion Analysis (for New Mexico Only)UnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion AnalysisUnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion Analysis (for North Carolina Only)UnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion Analysis (for Kentucky Only)UnitedHealthcare2026-10-01
    Diagnostic Dynamic Spinal Visualization and Vertebral Motion Analysis (for Kansas Only)UnitedHealthcare2026-10-01

    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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.