Bariatric surgery programs lose $50,000 to $150,000 a year to incomplete BMI documentation, missed psych-clearance language, and authorization mismatches — with first-submission denial rates running 15% to 25%.
Common Billing Challenges
These are the six billing failure points we see most often in bariatric surgery programs — and the ones our team resolves systematically from day one.
BMI must be a measured clinical value within 12 months of surgery, not self-reported or pulled from a 14-month-old referral letter — a common reason authorizations stall.
A vague psych evaluation without an explicit candidacy recommendation gets kicked back by payer reviewers, delaying authorization 4 to 8 weeks.
Medicare's NCD 100.1 and most commercial payers require physician-directed diet program documentation with monthly visit notes — a self-directed program like Weight Watchers doesn't satisfy it.
When a surgeon converts intraoperatively from sleeve gastrectomy (43775) to gastric bypass (43644) without concurrent authorization for both codes, the claim for 43644 comes back denied.
OIG has flagged sleeve-to-bypass upcoding and medical necessity failures — a 20% error rate on a 50-case audit sample can extrapolate to a $160,000 recoupment demand across a 36-month lookback for a 200-case-a-year program.
Roughly 20% of denials come from employer-sponsored plans that exclude bariatric surgery entirely — non-appealable, and only catchable with benefit verification before scheduling.
Key Procedure Codes
Our coders hold specialty-specific credentials and train continuously on the codes that drive the most revenue — and the most denials — in bariatric surgery.
| CPT Code | Description | Common Issue |
|---|---|---|
| 43775 | Laparoscopic sleeve gastrectomy | Avg. Medicare rate $1,890; most common bariatric procedure |
| 43644 | Laparoscopic Roux-en-Y gastric bypass | Avg. Medicare rate $2,340; wrong code selection is the top cause of payment delays |
| 43846 | Open Roux-en-Y gastric bypass | Avg. Medicare rate $2,100 |
| 43770 | Adjustable gastric band placement | Avg. Medicare rate $1,530 |
| 43848 | Revision of gastric bypass | Operative report must state conversion, not a new primary procedure |
| 43775 + 43644 | Sleeve-to-bypass conversion | Requires concurrent authorization for both codes to avoid denial |
Why Rcmaxis
We're not a generalist billing service that added a specialty module. Our team is built around specialty-specific expertise.
Every coder on your account holds the specialty coding credential relevant to bariatric surgery — not a generic CPC only.
Significantly above the 15-25% first-submission denial rate common in bariatric surgery. Fewer rejections means faster payment and less write-off risk.
Full EHR integration, payer enrollment verification, and charge capture setup in 2 weeks — with zero disruption to your surgical schedule.
One point of contact who knows your practice, your payers, and your billing history — available for weekly calls and monthly performance reviews.
Month-to-month engagement. We earn your business every month by improving your collections — not by locking you in.
Live visibility into your collections, denial rate, aging AR, and payer performance — updated daily, reviewed monthly with your account team.
Straight answers to what practices usually ask before they switch.
Free revenue assessment for qualified practices. We audit your last 90 days of claims, identify every revenue leak, and show you a clear path to better collections — at no cost.