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    v1.0.28
    OpenPayerBilling CodesOutpatient PPSHCPCS hcpcs-c7524-coronary-angiography-left-heart-catheterization-flow-reserve
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    HCPCS Level II C7524: Coronary Angiography with LV Cath and Intravascular CFR Measurement

    HCPCS Level II code C7524 describes catheter placement in coronary artery(ies) for coronary angiography with intraprocedural injections, imaging supervision and interpretation, and left heart catheterization with left ventriculography when performed, including intravascular Doppler velocity and/or pressure-derived coronary flow reserve (initial coronary vessel or graft) during coronary angiography with pharmacologically induced stress; this is an invasive diagnostic and physiologic coronary assessment procedure typically performed in a hospital-based cardiac catheterization laboratory or outpatient ambulatory surgical center and is classified as a coronary angiography with physiologic flow reserve measurement service.

    For related coverage guidance, see recent payer policy updates: Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA), Cardiovascular Disease Risk Assessment, Biomarkers for Myocardial Infarction and Chronic Heart Failure.

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    Clinical & Coding Specifications

    Clinical Context

    A 62-year-old male with exertional chest pain, dyspnea on exertion, and a positive pharmacologic stress test is referred for invasive coronary angiography with physiologic assessment. The patient has known coronary artery disease risk factors including hypertension, hyperlipidemia, and prior percutaneous coronary intervention with a drug-eluting stent placed in the right coronary artery. The interventional cardiology team schedules the patient for cardiac catheterization in the cardiac catheterization laboratory under conscious sedation or monitored anesthesia care.

    The procedure includes arterial access (commonly right radial or femoral), catheter engagement of coronary artery(ies) and contrast injections for coronary angiography, left heart catheterization with left ventriculography if indicated, and physiologic assessment using intravascular Doppler velocity and/or pressure-derived coronary flow reserve (CFR) measurement during coronary angiography. Pharmacologic stress (for example, intravenous adenosine or dobutamine) may be administered to provoke ischemia when required for CFR measurement. Imaging supervision and interpretation are performed by the attending interventional cardiologist. The team documents indications, informed consent, access site, catheter types, vessel(s) assessed, physiologic measurements, total contrast and fluoroscopy time, any procedural complications, and post-procedure disposition.

    Typical site of service: Hospital-based cardiac catheterization laboratory or outpatient ambulatory surgical center with interventional cardiology capabilities.

    Service type: Invasive diagnostic and physiologic coronary angiography with left heart catheterization and intravascular Doppler/pressure-derived coronary flow reserve measurement, optionally performed with pharmacologically induced stress.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    93458Catheter placement in coronary artery(ies) for coronary angiography, with left heart catheterization when performed; with intravascular Doppler and/or pressure derived coronary flow reserve measurement (initial vessel)This CPT code corresponds closely to the invasive coronary angiography with physiologic assessment; used when reporting CPT-level equivalent services for the initial vessel.
    93459Catheter placement in coronary artery(ies) for coronary angiography; with intravascular Doppler and/or pressure derived coronary flow reserve measurement (each additional vessel)Report alongside the primary code when additional coronary vessels receive intravascular physiologic assessment.
    93571Right heart catheterization including measurement(s) of hemodynamics and calculation of cardiac outputMay be performed in the same session if right-sided hemodynamic data are required for clinical decision-making.
    93580Non-selective coronary angiography, including imaging supervision and interpretationUsed when additional non-selective angiographic imaging is performed as part of diagnostic evaluation.
    92980Percutaneous transluminal coronary angioplasty, single vessel, with stent placementRepresents a potential therapeutic intervention performed during the same session if a significant lesion is identified and treated.

    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…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    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…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…
    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…
    73Modifier 73 indicates a facility-level outpatient hospital or ASC procedure that was discontinued after the patient was prepared and taken to the procedure/operating room but before any anesthesia…- When to use: Apply CPT modifier 73 on the FACILITY (outpatient hospital or ASC) claim when the patient has been fully prepared and physically taken into the procedure/operating room but the…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    208800000XUrology PhysicianA urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has compreh…
    207RC0000XCardiovascular Disease PhysicianAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threaten…
    363A00000XPhysician AssistantA physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and…
    367A00000XAdvanced Practice MidwifeAdvanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
    363L00000XNurse Practitioner(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision mak…
    2085R0202XDiagnostic Radiology PhysicianA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
    261QA3000XAugmentative Communication Clinic/CenterAn entity, facility, or distinct part of a facility staffed by audiology and/or speech professionals with special training in the evaluation of a pati…
    261QD0000XDental Clinic/CenterAmbulatory Health Care Facilities · Clinic/Center

    Related ICD-10-CM Codes

    30 rows

    ICD-10-CM CodeDescription
    E11.9Type 2 diabetes mellitus without complications
    E78.5Hyperlipidemia, unspecified
    I20.0Unstable angina
    I20.1Angina pectoris with documented spasm
    I21.3ST elevation (STEMI) myocardial infarction of unspecified site
    I21.4Non-ST elevation (NSTEMI) myocardial infarction
    I21.9Acute myocardial infarction, unspecified
    I25.10Atherosclerotic heart disease of native coronary artery without angina pectoris
    I25.110Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
    I25.119Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris

    Showing 1–10 of 30

    Related Payer Policy Updates

    Specialty: Cardiology1 / 3

    10 rows

    PolicyPayerEffective Date
    Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA)univerahealthcare2026-10-15
    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
    Cardiovascular Disease Risk Assessmentblue cross blue shield - louisiana2026-09-15
    Cardiovascular Disease Risk AssessmentBlue Cross Blue Shield - New Mexico2026-09-04
    Computed Tomography to Detect Coronary Artery CalcificationBluecross Idaho2026-09-01
    Intracoronary Drug Delivery Balloon ProceduresBlue Cross Blue Shield - Rhode Island2026-09-01
    Cardiac Imaging Guidelinesevicore2026-09-01
    Percutaneous Left Atrial Appendage Closure Device for Stroke PreventionAmbetter Georgia2026-08-26

    Related Codes

    HCPCS-C1713-IMPLANTABLE-ANCHOR-SCREW-BONE-FIXATION

    HCPCS C1713: Anchor/Screw for Bone or Soft Tissue Fixation (Implantable)

    HCPCS-C1714-TRANSLUMINAL-DIRECTIONAL-ATHERECTOMY-CATHETER

    HCPCS C1714: Catheter, transluminal atherectomy, directional

    HCPCS-C1715-BRACHYTHERAPY-NEEDLE

    HCPCS C1715: Brachytherapy Needle

    HCPCS-C1716-BRACHYTHERAPY-GOLD-198-SOURCE

    HCPCS C1716: Brachytherapy Source, Gold-198, Per Source

    HCPCS-C1717-HDR-BRACHYTHERAPY-IRIDIUM-192-SOURCE

    HCPCS C1717: HDR Iridium-192 Brachytherapy Source, Per Source

    HCPCS-C1719-BRACHYTHERAPY-IRIDIUM-192-SOURCE-NON-STRANDED

    HCPCS C1719: Brachytherapy Source, Iridium-192, Non-Stranded

    HCPCS-C1721-IMPLANTABLE-DUAL-CHAMBER-CARDIOVERTER-DEFIBRILLATOR

    HCPCS C1721: Cardioverter-Defibrillator, Dual Chamber (Implantable)

    HCPCS-C1724-ROTATIONAL-TRANSLUMINAL-ATHERECTOMY-CATHETER

    HCPCS Level II C1724: Rotational Transluminal Atherectomy Catheter

    HCPCS-C1725-TRANSLUMINAL-ANGIOPLASTY-CATHETER-NON-LASER

    HCPCS Level II C1725: Transluminal Angioplasty Catheter, Non-Laser

    HCPCS-C1726-NON-VASCULAR-BALLOON-DILATATION-CATHETER

    HCPCS C1726: Catheter, Balloon Dilatation, Non-Vascular

    Showing 1–10 of 603

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    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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    33206Insertion, cardiac pacemaker, single lead, transvenousMay be performed subsequently in patients found to have conduction abnormalities during assessment or as a separate procedure during same admission.