Please post initial responses and peer responses to the following discussion que

Please post initial responses and peer responses to the following discussion questions listed below:
What is the ICD-10-CM? How does ICD-10-CM differ from ICD-9-CM?
The ICD-10 includes an instructional notation to provide guidance to coders. One example is the Excludes notes. There are two types of Excludes notes, and each note has a different meaning. What is the difference between Exlcudes1 and Excludes 2 notes?