What Is MCC 5122? A Complete Guide for Pharmaceutical Merchants If your business operates in the pharmaceutical supply chain, understanding MCC 5122 is essential for smooth payment processing and compliance. This guide explains what Merchant Category Code 5122 covers, which businesses qualify, and how it can affect merchant account approvals, transaction monitoring, and payment processing. Whether you're a wholesale drug distributor, pharmacy supplier, or healthcare product merchant, knowing how this classification works can help you avoid unnecessary payment issues and improve operational efficiency. Read the full FirmEU guide to learn how MCC 5122 impacts your business and payment infrastructure. https://www.firmeu.com/blog/mcc-5122