C9600 Drug‑Eluting Stent (HCPCS) Reimbursement

Headline: HCPCS Level II code C9600: Drug‑Eluting Intracoronary Stent Placement with Angioplasty, Single Vessel

Lead: HCPCS Level II code C9600 denotes percutaneous transcatheter placement of drug‑eluting intracoronary stent(s), performed with coronary angioplasty when indicated, for a single major coronary artery or branch. The code captures a common endovascular intervention for coronary revascularization and is widely used in inpatient hospital care.

What this code represents and why it matters: The code documents a core interventional cardiology procedure—placement of drug‑eluting stents with angioplasty—for management of coronary artery disease and acute coronary syndromes. As a frequently billed high‑acuity inpatient service, accurate use affects clinical documentation, billing consistency, and case mix reporting across institutions.

Key payers covered: This publication covers policies and contract considerations for Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare.

What readers will learn: The article provides a concise national overview of HCPCS Level II code C9600, including clinical context, typical sites of service, common coding relationships and related procedure codes, and operational considerations for inpatient billing. It highlights where data is missing in the input and points to related codes commonly used alongside C9600 for multi‑vessel or adjunctive procedures. Benchmarks, payer policy specifics, and reimbursement details are summarized where available; if particular data elements are not provided, the text will note "Data not available in the input."

Billing Code Overview

HCPCS Level II code C9600 describes percutaneous transcatheter placement of drug eluting intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch. The procedure falls under the service type Percutaneous Transcatheter/Transluminal Coronary Procedures and is typically performed in an Inpatient Hospital (POS 21) setting. Data not available in the input.

Clinical Context

A 68-year-old patient with known atherosclerotic coronary artery disease presents to the inpatient hospital for evaluation after new onset exertional chest pain and an elevated troponin. Diagnostic coronary angiography identifies a significant, flow-limiting lesion in a single major coronary artery. The interventional cardiology team performs a percutaneous transcatheter procedure with coronary angioplasty and places a drug-eluting intracoronary stent to restore vessel patency. The procedure is performed in the catheterization laboratory while the patient is admitted (Place of Service 21). Post-procedure monitoring and antiplatelet management occur on the inpatient unit prior to discharge.

Coding Specifications

HCPCS Level II code: C9600 — Percutaneous transcatheter placement of drug eluting intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch
Common Modifiers:
26 — Professional Component
Used to report the physicians professional work and interpretation when the service is split between professional and technical components.
TC — Technical Component
Used to report the facility or equipment and technical resources when the service is split between components.

National mean allowed rates for HCPCS Level II code C9600 vary substantially across commercial payers and Medicare (BUCA). Medicare’s values are represented in the input as $0.00 for mean and percentiles, while the BUCA commercial average mean is $1,336.57, placing BUCA below most large commercial carriers but above Cigna Health on average.

Rate dispersion (P75 minus P25) is widest for UnitedHealthcare (difference of $11,631.50) and Blue Cross Blue Shield (difference of $6,499.50), indicating substantial variability in allowed amounts. Cigna Health shows the tightest dispersion (difference of $0.00), followed by Aetna (difference of $107.00) and BUCA (difference of $311.00). The table and chart below present the full breakdown of mean rates and key percentiles for each payer.

Related Diagnoses

I25.10 — Atherosclerotic heart disease of native coronary artery without angina pectoris
Clinical relevance: Documents underlying coronary atherosclerosis as the chronic substrate for ischemic lesions that may require percutaneous stent placement.
I20.9 — Angina pectoris, unspecified
Clinical relevance: Represents symptomatic myocardial ischemia that can prompt diagnostic angiography and revascularization with angioplasty and stenting.
I21.9 — Acute myocardial infarction, unspecified
Clinical relevance: Acute MI can necessitate urgent percutaneous coronary intervention with angioplasty and drug-eluting stent placement to restore coronary perfusion.
I25.119 — Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
Clinical relevance: Identifies atherosclerotic disease with anginal symptoms, indicating clinical justification for revascularization procedures such as C9600.
I25.110 — Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
Clinical relevance: Unstable angina is an acute coronary syndrome often managed with invasive evaluation and possible percutaneous stent placement reflected by C9600.

Related Codes

C9601 — Percutaneous transcatheter placement of drug‑eluting intracoronary stent(s), with coronary angioplasty when performed; each additional branch of a major coronary artery (list separately in addition to code for primary procedure)
Typically billed in addition to C9600 when more than one branch of a major coronary artery receives a drug-eluting stent during the same session.
C9602 — Percutaneous transluminal coronary atherectomy, with drug eluting intracoronary stent, with coronary angioplasty when performed; single major coronary artery or branch
Represents an alternative or adjunct when plaque modification with atherectomy is performed before stent placement in a single vessel.
C9604 — Percutaneous transluminal revascularization of or through coronary artery bypass graft (internal mammary, free arterial, venous), any combination of drug‑eluting intracoronary stent, atherectomy and angioplasty, including distal protection when performed; single vessel
Used when the target vessel is a coronary artery bypass graft rather than a native coronary artery; alternative to C9600 in graft interventions.
C9606 — Percutaneous transluminal revascularization of acute total/subtotal occlusion during acute myocardial infarction, coronary artery or coronary artery bypass graft, any combination of drug‑eluting intracoronary stent, atherectomy and angioplasty, including aspiration thrombectomy when performed, single vessel
Used for acute MI cases with total or subtotal occlusion requiring thrombectomy and revascularization; may be billed instead of C9600 when the clinical setting is acute occlusion management.
92928 — Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch
A widely used alternative code describing stent placement with angioplasty; may be reported in different payor contexts or when HCPCS Level II C9600 is not applicable.
Common usage patterns:
C9600 is billed for the primary single-vessel drug-eluting stent procedure. When additional branches are treated, C9601 is listed separately. When atherectomy is performed in the same vessel, C9602 can represent that combined technique. In cases involving bypass grafts, use C9604. For acute total occlusion during MI with aspiration thrombectomy, C9606 is used. 92928 functions as a commonly referenced procedural code for intracoronary stent with angioplasty and can be an alternative depending on payer requirements.

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Summary & Overview

HCPCS Level II C9600: Drug-Eluting Intracoronary Stent Placement with Angioplasty

Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

National Reimbursement Benchmarks

Related Codes

Related Diagnoses

Related Codes

National Reimbursement Benchmarks

Related Codes