Discussion
1. What is medical coding and what is it used for?
2. What coding systems are used in the United States?
3. How did changes to the ICD-9 over the years reflect events
4. What is ICD-10 and why was it mandated to use it?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.