A cardiology practice sees an established patient for a routine hypertension review. The note documents one stable chronic problem, a single prescription refill, low-complexity medical decision making, and total time on the date of service of 20 minutes. The physician selects CPT 99213. The practice manager instructs the coder to change the code to 99215 to increase reimbursement, although nothing in the record supports high-complexity decision making or the time that code requires. What does changing the code in this way represent?
- AA permissible coding adjustment, because the physician's overhead costs justify billing a higher-level established patient visit.
- BUpcoding, because a service is reported at a higher level than the documentation and medical necessity support. Correct
- CUnbundling, because two separate evaluation and management services have been combined into one higher code.
- DA legitimate use of clinical judgement, because the coder may assume additional work was performed but not written down.
Why A is wrong: Overhead is real but it does not change the level of service actually rendered; code level is driven by documented decision making or time, not by the cost of running the practice, so this is not a lawful basis.
Why B is correct: Reporting 99215 when only 99213-level decision making and time are recorded bills for work that was neither performed nor documented, which is the textbook definition of upcoding.
Why C is wrong: Unbundling means splitting one service into several codes to gain payment; here a single visit is simply reported at an inflated level, so the mistake is tempting but names the wrong violation.
Why D is wrong: A coder must code from the record, not from assumed unrecorded work; if it is not documented it cannot be billed, so this rationale invites exactly the abuse the rules forbid.