Breadcrumb Home Office Systems Technology OST-248 OST-248: Diagnostic Coding Download as PDF Program Office Systems Technology Credits 3 Lab Hours 2 Lecture Hours 2 Clinical Hours 0 Work Hours 0 Contact Hours 4 This course provides an in-depth study of diagnostic coding. Emphasis is placed on ICD coding system. Upon completion, students should be able to properly code diagnoses in a medical facility. Prerequisites State prerequisiteTake One: MED-121 or OST-141