For Exceptional Proff only.

Primary Task Response: Within the Discussion Board area, write 400–600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions by your classmates. Be substantive and clear, and use examples to reinforce your ideas.

While assisting the coding manager in preparing for the electronic health record (EHR) implementation, you are reviewing diagnosis and procedure codes entered by the coders into the EHR.

• To understand the importance of the codes, discuss medical necessity and how the International Classification of Disease 10th Clinical Modification (ICD-10-CM) and current procedural terminology (CPT) codes help to determine medical necessity. 
• ICD-10 replaced the previous coding system, ICD-9 system, in October 2015.   What is the difference in format for these two coding systems?  What is the advantage of the ICD-10 system? What is the difference between ICD-10-CM and ICD-10-PCS?

Be sure to support your information by citing at least 2 references using APA format.