What makes bariatric billing services different
Bariatric billing services live or die months before the operation. Payers require a documented medically supervised weight-loss program, psychological evaluation, nutrition counseling and specific BMI and comorbidity criteria before they approve a case — and a single missing element turns a six-figure episode into a self-pay surprise. Fastora provides bariatric medical billing for bariatric surgery programs, MBSAQIP-accredited centers and surgeon practices, built around pre-op documentation packages, procedure coding for sleeve, bypass, band and revision cases, and global-period management. A bariatric billing company has to own the whole episode, from the first consult to the last follow-up visit.
Unlike most surgical specialties, the bariatric claim is rarely denied for the surgery itself — it is denied for what happened before it. Our medical billing services for bariatric programs therefore start with eligibility, benefits and documentation review long before the authorization is submitted.
Pre-op programs and prior authorization
Most payers require six months of documented physician-supervised weight management — monthly visits with recorded weight, diet and activity counseling — plus a psychological clearance, nutrition evaluation and documented failure of conservative measures. Medicare's bariatric surgery national coverage determination sets BMI and comorbidity thresholds that commercial plans generally mirror.
We assemble the authorization package from the record rather than from memory: visit dates, weight logs, psych and nutrition clearances, sleep-study and comorbidity documentation, all cross-checked against the payer's written policy before the prior authorization is submitted. Appeals for denied authorizations are built on the same policy language the payer used to deny.
Procedure coding: sleeve, bypass, band and revisions
| Procedure | Representative codes | Billing note |
|---|---|---|
| Laparoscopic sleeve gastrectomy | 43775 | Most common primary procedure; check plan-specific coverage |
| Laparoscopic Roux-en-Y gastric bypass | 43644 | Includes gastrojejunostomy; report per coding guidance, not per anastomosis |
| Laparoscopic adjustable gastric band placement | 43770 | Declining use; confirm the plan still covers banding |
| Band removal or revision | 43774 | Removal codes differ from placement codes |
| Biliopancreatic diversion with duodenal switch, laparoscopic | 43845 | High-complexity case; facility and professional coordination matters |
| Revision of restrictive procedure (non-band) | 43848 | Medical necessity must be documented, not implied |
Revision and conversion cases need their own authorization and their own documented reason — weight regain, complications, failed prior procedure — and payers scrutinize them more closely than primary cases. Self-pay program cases should never touch the insurance billing workflow, and hybrid episodes need the cash and insurance portions split cleanly.
Our medical coding team reviews bariatric operative reports against the authorization letter so the billed procedure matches what was approved — a mismatch is one of the most expensive denials in surgery billing.
Global periods, staged procedures and surgical team billing
Bariatric surgery carries a 90-day global period, so pre-op visits, the operation and routine post-op follow-ups are one package. Staged procedures — band to sleeve conversions, revisions after a waiting period — need modifiers and documentation that show a distinct, planned episode rather than a complication of the first.
Assistant-at-surgery, co-surgeon and teaching-physician rules vary by payer, and some plans cap assistant reimbursement or require specific modifiers. We reconcile the operative report's listed participants with the claim so the right modifiers land on the right lines.
Self-pay programs and denied coverage
Every bariatric program has patients whose plans exclude weight-loss surgery entirely. Those patients need a transparent self-pay package with a written financial agreement before surgery — not a surprise bill after. We keep self-pay episodes in a separate workflow so no claim is filed for a service the patient elected to pay for, and we make sure superbills are available for patients who want to submit to their own plans.
For patients whose authorization is denied, we prepare the appeal with the payer's own policy language and the full documentation trail. When coverage is genuinely not there, the conversation with the patient happens before the OR is scheduled.
Common bariatric billing denials and how we prevent them
| Denial | Typical cause | Prevention step |
|---|---|---|
| Authorization denied | Missing supervised weight-loss months or psych clearance | Documentation package checked against payer policy before submission |
| Procedure mismatch | Billed procedure differs from authorization | Operative report reconciled to authorization letter |
| Global period conflict | Post-op E/M billed separately without a modifier | Global-period calendar maintained per episode |
| Non-covered diagnosis | Plan excludes bariatric surgery | Exclusion checked at first consult; self-pay workflow if needed |
| Revision denied | No documented indication for the revision | Revision reason and prior procedure history documented up front |
Claims pass our Advanced Pre-Submission Claim Review before submission. Denials that still occur are worked by our denial management team, corrected and resubmitted or appealed with the record, and open balances are followed up by payer and age.
Credentialing for bariatric programs
Bariatric surgeons, physician assistants and program dietitians and psychologists each need enrollment with the plans the program bills. Accredited centers also need facility credentialing current so the professional and facility claims pay together.
Our credentialing and enrollment service tracks each file through a nine-stage process, from document collection and NPI and CAQH setup to payer applications, follow-ups and final approval.
How Fastora supports bariatric billing
Fastora works inside your existing EHR/PM system under the user access you grant, with no software to install and no hidden setup fees. You get a dedicated account contact, transparent dashboards, monthly performance reporting and a monthly review call.
Fees are quoted after a free assessment, and you can read how our pricing models work beforehand. To see how your current claims hold up, start with a free billing assessment.