A wound care practice under prepayment review learns two facts fast. Claims for the reviewed service stop paying while the file is open, and the review ends only when the Medicare Administrative Contractor (MAC) is satisfied the error rate has genuinely improved. For a practice billing debridement or skin substitute applications, the cash-flow gap lands first, before the findings become a legal question. Surviving the review means managing that gap while working toward the criteria that actually end it.
The Cash-Flow Mechanics of Prepayment Review
Once a service is placed on prepayment status, the MAC suspends payment on every claim billing that code, issues an Additional Documentation Request (ADR) for each one, and gives the practice 45 calendar days to submit the supporting record before payment releases. Denials overturned on appeal are paid but without interest for the months they sat unpaid. Because the hold applies only to the flagged code, a practice can lose the entire margin on CPT 11042 through 11047 debridement claims or Q-code skin substitute applications while the rest of its billing pays normally, which is why the reviewed service line is what determines whether payroll clears that month.
The Round Structure Behind Targeted Probe and Educate
Most wound care prepayment review runs through CMS's Targeted Probe and Educate (TPE) program. A MAC's data analysis flags the practice for a denial rate that is aberrant against its peers, or CMS has designated the service nationally high-risk. TPE runs up to three rounds of 20 to 40 claims each. After every round with errors, the MAC holds a one-on-one education session, walking through where the record fell short of the applicable local coverage determination, and gives the practice at least 45 days to correct the pattern before the next round begins. A missing signature log entry is among the most common findings that drive a second or third round.
CMS does not publish one fixed error-rate percentage that ends a wound care prepayment review. The threshold is specific to the service under review, and it is earned round over round, not negotiated.
What Actually Ends Review Status
A practice exits when a round comes back compliant enough that the MAC does not open another round on that topic. If the first round shows no errors, review can close immediately. Per CMS's own program description, a compliant practice is not reviewed again on the same topic for at least one year. The required improvement is set by the MAC for the specific item or service rather than a single published percentage, and it rewards a sustained downward trend across rounds over one clean batch. A practice that fails to improve enough after three rounds is referred to CMS for further action, which can include 100 percent prepayment review, extrapolation, or referral to a Recovery Auditor or Unified Program Integrity Contractor, each a larger exposure than the TPE review that preceded it.
Managing Cash Flow Through the Review Window
With payment on the reviewed code frozen, the operational response has three parts. First, build every claim submitted from this point forward to the record the LCD actually requires; coverage elements are addressed in Wound Care LCD Compliance: Coverage Criteria by Documentation Element, and the ADR mechanics that release held claims are addressed in Wound Care Prepayment Review: Documentation That Releases Claims. Second, size a working-capital bridge to the actual volume under review rather than guessing. Third, appeal every incorrect denial rather than absorbing it; an overturned denial restores the revenue, and a practice's debridement coding pattern across appealed claims is itself evidence the MAC weighs before opening the next round.
Why Early Legal Counsel Is Critical
It is critical that wound care practices retain experienced healthcare defense counsel promptly after placement on prepayment review, rather than waiting to see how the first round of ADRs resolves. Early legal intervention can protect the practice's rights, shape how the record answers each documentation gap the MAC is likely to flag, avoid inadvertent admissions during the education session, and position every subsequent round to move the practice toward exit rather than deeper into review. Delaying counsel until after a second round of denials narrows the options considerably.
How Health Law Alliance Can Help
Health Law Alliance has represented 2,500+ clients across Medicare audit and prepayment review matters over 25+ years, including wound care and skin substitute practices working through Targeted Probe and Educate review. Our wound care audit defense attorneys can review the ADR findings, prepare the record for the next round, and help structure the practice's response to the exit criteria the MAC is actually applying. Contact Health Law Alliance for a free, confidential consultation before your next round of claims goes out.
