Basic Principles of ICD-10-CM and ICD-10-PCS CodingThe following exercises are designed to review ICD-10-CM and ICD-10-PCS coding guidelines and to provide practice in assigning ICD-10-CM and ICD-10-PCS codes. Because ICD-10-CM and ICD-10-PCS index diagnoses and procedures in many different ways, the rationale for the selection of a particular code may be different from the approach that you use. The information included in the rationale is not meant to describe the only way to obtain an appropr