AABB is pleased to release the AABB Billing Guide for Blood Products and Related Services as a complimentary benefit in the AABB Marketplace. The billing guide is an indispensable tool that provides up-to-date information on coding, Medicare billing and reimbursement relating to blood products. The guide’s seven major sections contain critical details on the rules and exceptions that apply in both inpatient and outpatient settings. Nine appendices address specific situations, such as nonhospital settings, molecular testing, physician services, and handling rejected or denied claims. This revision is made possible through the efforts of the AABB Coding and Reimbursement Committee and the support of the Commonwealth Transfusion Foundation.