CardioMEMS™ HF System

The CardioMEMS TM HF System is a system that measures and monitors the pressure in the pulmonary artery (PA) and also the heart rate in heart failure patients. The system consists of: implantable PA sensor, delivery system, and Patient Electronics System. The PA sensor is permanently placed in the pulmonary artery via a right heart catheterization. It is about the size of a small paper clip and does not require any batteries or wires. Which CPT code would be more appropriate, code 93799 , Unlisted cardiovascular service or procedure , or code 33999 , Unlisted procedure, cardiac surgery ? ...

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

Article Overview

This article explains the CardioMEMS HF System in broad terms and addresses the coding question that arises when a pulmonary artery sensor is implanted during a catheter-based heart procedure. It is aimed at coders, billing staff, and cardiovascular documentation reviewers who need to understand the service context and the related outpatient reporting discussion. The article also references how the procedure is viewed within facility reporting under OPPS, while keeping the focus on general coding scope rather than detailed code-selection logic.

Why This Topic Matters

Cardiac implant and catheter-based monitoring procedures can be difficult to classify, so articles like this help readers determine whether the service fits within an unlisted or facility-reporting framework. Understanding the article’s scope can save time when reviewing documentation for cardiovascular and heart failure-related services.

What You Will Learn

  • The basic purpose and components of the CardioMEMS HF System
  • How the procedure context is framed for coding review
  • Why the article raises an outpatient facility reporting question
  • What types of documentation issues are relevant to this cardiovascular service

Who Should Read This

  • Medical coders
  • Billing specialists
  • Revenue cycle staff
  • Cardiovascular documentation reviewers
  • Facility reimbursement staff

Codes Discussed


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