Ambulatory medical billing and coding is considered the backbone of the healthcare revenue cycle. It involves all practices that can ensure accurate reimbursement for Ambulatory related services. The process starts with translating the Ambulatory related healthcare services into standard codes and procedures. These Codes are submitted before insurance provider to claim reimbursements. In this article, we will specifically discuss various codes that are used in ambulatory medical billing and coding. This article will also shed light on the significance of using CPT codes and their applications in the evolving landscape of the healthcare industry.