Step 1: 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 9th Clinical Modification (ICD-9-CM) and current procedural terminology (CPT) codes help to determine medical necessity.

Step 2: While discussing coding format for the EHR with the coding manager, you learn that The International Classification of Disease 10th Clinical Modification Procedure Classification System (ICD-10-CM-PCS) will be effective soon.

Discuss the following:

• Explain when it is effective and why it replaces ICD-9-CM codes.
• Is there a difference in format for these 2 coding systems?

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

Minimum of 400 words. Due by 10 pm EST 06/13/15