Summary & Overview
CPT 36222: Catheter Angiography of Carotid/Cervicocerebral Circulation
CPT code 36222 designates imaging supervision and interpretation for catheter angiography when a catheter is advanced into the thoracic aorta and into the common carotid artery or cervicocerebral arch for contrast injection and X‑ray imaging. This diagnostic interventional radiology procedure is used to identify carotid and cervicocerebral vascular disease and informs decisions on medical, endovascular, or surgical management. Nationally, accurate coding for this service affects procedural tracking, quality reporting, and appropriate reimbursement for complex vascular imaging.
Key payers in the national landscape include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for the procedure, how it is typically delivered (hospital radiology or catheterization laboratory), and what to expect in coding and billing workflows. The publication also covers common modifiers used with angiographic services, relevant service-line placement, and benchmarking considerations where available. Data not available in the input will be clearly identified.
Billing Code Overview
CPT code 36222 represents imaging supervision and interpretation for catheter angiography in which a catheter is inserted through a distal artery into the thoracic aorta and advanced into the common carotid artery or cervicocerebral arch for contrast injection and X‑ray imaging. The procedure is performed to detect vascular disease affecting the carotid or cervicocerebral circulation.
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Service type: Diagnostic angiographic imaging with catheter-based contrast injection and real-time fluoroscopic guidance for vascular evaluation
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Typical site of service: Hospital radiology or catheterization laboratory (inpatient or outpatient) and specialized vascular/interventional suites
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of hypertension, hyperlipidemia, and transient ischemic attack presents with new onset left-sided weakness and carotid bruits on exam. Noninvasive duplex ultrasound suggests high-grade right internal carotid artery stenosis. The vascular surgery and interventional radiology teams schedule diagnostic and planning angiography. Under conscious sedation in an angiography suite, vascular access is obtained via a distal arterial approach (commonly femoral or radial). A catheter is advanced into the thoracic aorta and selectively into the common carotid artery or cervicocerebral arch. Contrast is injected while the supervising physician provides imaging supervision and interpretation, acquiring X‑ray angiographic images to define lesion location, degree of stenosis, and anatomy for possible subsequent intervention (stenting or endarterectomy). The workflow includes pre-procedure informed consent, anticoagulation review, sterile arterial access, real-time fluoroscopic imaging with contrast injections, intraprocedural interpretation by the supervising physician, documentation of findings and interpretation in the procedure note, and post-procedure monitoring in a recovery unit prior to discharge or admission.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal or benchmark service | When the procedure represents a routine, uncomplicated imaging interpretation by the primary clinician performing the service |