CPT guidelines state that a primary mechanical thrombectomy is reported per vascular family using code 37184 , Primary percutaneous transluminal mechanical thrombectomy, noncoronary, arterial or arterial bypass graft, including fluoroscopic guidance and intraprocedural pharmacological thrombolytic injection(s); initial vessel, for the initial vessel, and code 37185 , Primary percutaneous transluminal mechanical thrombectomy, noncoronary, arterial or arterial bypass graft, including fluoroscopic guidance and intraprocedural pharmacological thrombolytic injection(s); second and all subsequent vessel(s) within the same vascular family (List separately in addition to code for primary mechanical thrombectomy procedure), for the second or all subsequent vessels within the same vascular family. Are vascular families and vascular territories interchangeable terms when referencing peripheral arteries? ...

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Note:  The following article synopsis was NOT provided by the AMA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article reviews CPT guidance for reporting primary mechanical thrombectomy in peripheral arterial settings. It focuses on the concept of vascular family versus vascular territory, the reporting structure for initial and subsequent vessels, and how the guidance applies across treated vessels within the same family. The content is intended for coding professionals who need to understand the relevant CPT framework and related terminology.

Why This Topic Matters

Correct reporting for vascular-family-based thrombectomy services depends on understanding how CPT defines the scope of treatment across initial and later vessels. This matters for coders, billers, and auditors working with peripheral arterial endovascular procedures.

Codes Discussed

• CPT: 37184
• CPT: 37185

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