10 free CCS practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CCS Practice Test 14Tutor mode
Question 1 of 10
Coding Knowledge and Skills
A pneumonia admission grouped to the "without CC/MCC" MS-DRG of a three-tier family. On review, the coder finds that the attending documented and treated "acute on chronic systolic heart failure" (I50.23), which had not been coded. I50.23 is an MCC and is not on the principal diagnosis's CC exclusion list. What happens when it is added?