The ICD-10-CM and ICD-10-PCS Coding Handbook, 2013 edition, has been updated to incorporate the 2012 revisions of the diagnosis and procedure codes as well as the 2012 Official Coding Guidelines. More than 800 new or revised diagnosis codes and 3,000 new or revised procedure codes have been examined for this revision. An expanded introduction describes the major differences between ICD-9-CM and ICD-10-CM/PCS. This edition introduces new illustrations of surgical procedures and a new appendix on reimbursement methodologies. The Handbook contains more than 260 case-summary exercises with answers.