Summary & Overview
HCPCS G8961: Cardiac Stress Imaging for Preoperative Evaluation
HCPCS Level II code G8961 designates a cardiac stress imaging test performed primarily for preoperative evaluation in a low-risk surgery patient when administered within 30 days before the procedure. This code clarifies billing for diagnostic cardiac imaging used specifically to assess perioperative cardiac risk rather than for general cardiac diagnostic workups. Nationally, clarifying use of G8961 matters because preoperative testing practices affect utilization patterns, surgical clearance workflows, and payer coverage determinations.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an explanation of the code’s clinical intent and common sites of service, plus a concise overview of what typical coverage conversations address: clinical indications for preoperative cardiac imaging, timing relative to scheduled surgery, and differences in payer policies. The publication also summarizes common modifiers associated with procedural billing when available and highlights where input data were not provided.
This piece provides benchmarks and policy context for administrators, coders, and clinicians responsible for preoperative testing decisions and billing. It outlines the code’s scope, common operational settings, and the payer landscape so readers can align clinical workflows and documentation with coverage expectations. Data not available in the input are noted where relevant.
Billing Code Overview
HCPCS Level II code G8961 describes a cardiac stress imaging test performed primarily for preoperative evaluation in a low-risk surgical patient when the test is done within 30 days before the surgery. This code applies to a diagnostic cardiac stress imaging service ordered to evaluate cardiac risk prior to a planned surgical procedure.
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Service type: Cardiac stress imaging for preoperative evaluation
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Typical site of service: Outpatient imaging centers or hospital outpatient departments where preoperative cardiac testing is performed
Clinical & Coding Specifications
Clinical Context
A 58-year-old male scheduled for an elective inguinal hernia repair presents for preoperative evaluation. He is assessed in the preadmission testing clinic 2 weeks before surgery with history of hypertension, well-controlled on medication, and no prior cardiac events. Given his planned intermediate-risk noncardiac surgery and active functional capacity without ischemic symptoms, the surgical team requests a cardiac stress imaging test within 30 days before the operation to provide additional cardiac risk stratification. The cardiology or nuclear medicine team schedules a pharmacologic myocardial perfusion imaging study (or exercise sestamibi stress test if patient can exercise) conducted at an outpatient imaging center or hospital outpatient department. The patient undergoes the imaging procedure with monitoring by a technologist and supervising cardiologist; images and a written report are provided to the surgeon and anesthesiologist to inform perioperative planning. Typical site of service: outpatient hospital imaging department or freestanding outpatient imaging center. Service type: preoperative cardiac stress imaging for low-risk surgery patients performed within 30 days preceding surgery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
23 | Unusual anesthesia — not applicable here but CMS-defined | Rarely used; not typically appended to imaging codes (included in list but generally not applied to diagnostic imaging) |