When President Obama signed H.R. 4302 into law, it pushed back the compliance date for ICD-10 by at least one year. The 10th revision of the International Statistical Classification of Diseases and Related Health Problems introduces a significant change to the coding system. That has some practitioners scrambling to accommodate the over 67,000 coding options in ICD-10. The extra year offered by H.R. 4302 buys them time to complete the transition, but at what cost?