ICD-10-PCS is a major departure from ICD-9-CM procedure coding, and as such many Coding Specialists find ICD-10-PCS much more challenging to learn than ICD-10-CM (which still shares many similarities with ICD-9-CM). In order to ease the transition from ICD-9-CM procedure coding to ICD-10-PCS, over the next ten months, we will provide tips for coding under this system.