Breadcrumb Home Office Systems Technology OST 247 OST 247: Procedure Coding Download as PDF Course Subject Office Systems Technology Credits 3 Class Hours 2 Lab Hours 2 Clinical Experience Hours 0 This course provides in-depth coverage of procedural coding. Emphasis is placed on CPT and HCPCS coding systems. Upon completion, students should be able to properly code procedures and services performed in a medical facility. State Prerequisites MED 121 or OST 141