CPT 0361T: Heart CT with Contrast During Cardiac Catheterization, 3D Postprocessing - OpenPayer

Summary & Overview

CPT 0361T: Heart CT with Contrast During Cardiac Catheterization, 3D Postprocessing

CPT code 0361T covers multi-slice computed tomography of the heart with contrast, including 3D image postprocessing, performed during cardiac catheterization. The code captures a hybrid diagnostic imaging service used to visualize coronary anatomy and cardiac structures intra-procedurally, supporting real-time decision-making in interventional cardiology and complex coronary assessments. Nationally, this code matters for hospitals and cardiology practices because it represents an advanced imaging modality integrated into catheterization procedures, with implications for clinical workflow, resource use, and reimbursement pathways.

Key payers discussed include Aetna, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for the service, how CPT code 0361T interfaces with related interventional and imaging services, and the common diagnostic indications associated with its use, such as coronary artery disease, angina, myocardial infarction, heart failure, and presence of prior bypass grafts. The publication summarizes where the service is typically performed, related procedure codes used in the catheterization and cardiac CT setting, and high-level benchmarking and policy considerations that affect coverage and coding choices.

This summary provides clinicians, billing professionals, and policy analysts with the clinical framing and coding identity of CPT code 0361T, enabling accurate documentation and alignment with payer rules.

AetnaCigna HealthUnitedHealthcareMedicare0361TCPTCardiac CTInterventional CardiologyDiagnostic RadiologyIntra-procedural Imaging3D PostprocessingCardiac Catheterization

Billing Code Overview

CPT code 0361T describes a multi-slice computed tomography (CT) of the heart with contrast material, including three-dimensional image postprocessing, performed during cardiac catheterization.

Service type: Diagnostic cardiac CT with 3D postprocessing performed intra-procedurally.

Typical site of service: Hospital outpatient department or catheterization laboratory during cardiac catheterization.

Clinical & Coding Specifications

Clinical Context

A 64-year-old male with known coronary artery disease and prior aortocoronary bypass grafting (Z95.1) presents to the cardiac catheterization lab with exertional chest pain and intermittent angina (I20.9) and a recent episode concerning for non–ST-elevation myocardial infarction (I21.9) with elevated troponin and persistent symptoms despite medical therapy. The interventional cardiology team plans invasive coronary angiography via right radial access. During the same session, the team performs a contrast-enhanced multi-slice cardiac CT with 3D postprocessing (0361T) to evaluate native coronary anatomy, graft patency, and complex spatial relationships prior to potential percutaneous coronary intervention.

The clinical workflow: patient consent and pre-procedure allergy/renal assessment; intravenous contrast and hemodynamic monitoring in the cath lab; performance of invasive angiography (catheter placement and diagnostic cine runs); while vascular access remains established and the patient is hemodynamically stable, acquisition of gated multi-slice CT heart with iodinated contrast and immediate 3D postprocessing to assist in procedural planning; post-imaging review by interventional cardiologist and diagnostic radiologist to inform intraprocedural decisions such as stent sizing (92928), intravascular physiologic assessment (93571), or additional catheter-based interventions. Typical site of service is the hospital cardiac catheterization laboratory or an ambulatory surgical center with CT capability. Service type: image-guided diagnostic CT performed intra-procedurally during cardiac catheterization.

Coding Specifications

Related Codes

97157

CPT 97157: Adaptive Behavior Treatment by Protocol, Multiple-Family Group

cpt-0368t-behavior-treatment-modified-additional

CPT 0368T: Behavior Treatment Modified Additional

0366

CPT 0366T: Deleted Cardiology Outpatient Hospital Procedure Code

cpt-0365t-adaptive-behavior-treatment-additional

CPT 0365T: Adaptive Behavior Treatment, Additional

0369

CPT 0369T: Duodenal Mucosal Resurfacing, Endoscopic

97158

CPT 97158: Group Adaptive Behavior Treatment with Protocol Modification

cpt-97152-technician-behavioral-assessment-destructive-behavior

CPT 97152: Technician Assessment of Destructive and Behavioral Problems

0363

CPT 0363T: Adaptive Behavior Treatment, Office-Based (Deleted 2019)

0374

CPT 0374T: Exposure Adaptive Behavior Treatment, Additional Technician Time

cpt-97151-behavioral-assessment-care-planning

CPT 97151: Provider Behavioral Assessment and Care Planning

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Taxonomy Code	Specialty	Notes
`2085R0202X`	Radiology, Diagnostic Radiology	Interprets CT images and provides formal report with 3D postprocessing findings.
`207RC0000X`	Cardiovascular Disease Physician	Referring/interventional cardiologist ordering and using CT information for coronary management.
`207RI0011X`	Interventional Cardiology	Performs coronary catheterization and integrates CT imaging into intraprocedural decision-making.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I25.10`	Atherosclerotic heart disease of native coronary artery without angina pectoris	Indicates underlying coronary atherosclerosis; CT during cath can assess lesion morphology and extent.
`I20.9`	Angina pectoris, unspecified	Symptom indication for invasive evaluation and intra-procedural CT to localize ischemia-producing lesions.
`I21.9`	Acute myocardial infarction, unspecified	Acute presentation prompting urgent cath; adjunctive CT may evaluate anatomy when needed during the procedure.
`I50.9`	Heart failure, unspecified	Heart failure patients may undergo combined imaging to evaluate ischemic contributors and graft patency.
`Z95.1`	Presence of aortocoronary bypass graft	Prior CABG; intra-procedural cardiac CT is useful to evaluate graft patency and anatomy before intervention.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`93458`	Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural imaging when performed	Typically performed immediately before `0361T` as the diagnostic invasive angiography portion of the cath lab session.
`75574`	CT, heart, with contrast, for evaluation of cardiac structure and morphology; with quantitative evaluation of cardiac structure	A related standalone CPT for contrast-enhanced cardiac CT; `0361T` represents intra-procedural CT during catheterization with 3D postprocessing.
`92928`	Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed	May follow the combined angiography and CT when intervention (stent placement) is indicated based on imaging findings.
`93571`	Intravascular Doppler velocity and/or pressure derived coronary flow reserve measurement, during coronary intervention	May be performed adjunctively after diagnostic angiography and CT to assess physiologic significance and guide revascularization decisions.

`26`	Professional component	Use when reporting only the physician interpretation/reading of the CT when technical component billed separately.
`TC`	Technical component	Use when billing only the facility technical component (scanner, technologist) and physician bills separately.
`59`	Distinct procedural service	Use when the CT study is a distinct service from other procedures performed during the same encounter and documentation supports separate reporting.
`XS`	Separate structure	Use when the CT is performed on a separate anatomical structure or distinct service line from other procedures in the same session.
`77`	Repeat procedure by same physician	Use if the imaging study must be repeated during the same encounter by the same physician for valid clinical reasons.
`78`	Unplanned return to the operating/procedure room by the same physician following initial procedure	Use if an unplanned repeat imaging-guided intervention occurs requiring return to the cath lab and related imaging is billed as part of that subsequent procedure.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use when the intra-procedural CT is unrelated to a prior postoperative global period procedure.
`26`	Professional component	Use when only the interpretation is billed by the physician separate from the facility.
`GA`	Waiver of liability statement on file (ABN)	Use when the payer requires advance beneficiary notice for non-covered services and the notice is on file.
`GZ`	Item or service expected to be denied as not reasonable and necessary	Use when provider documents expectation of denial and files appropriate documentation without ABN.