Coverage criteria not met
The payer finds the supervised weight program, psychological clearance or BMI history incomplete. Core MB builds a criteria checklist per payer and confirms every element before the authorization request goes in.
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Bariatric surgery medical billing services
Bariatric surgery billing starts months before the operation. Payers want a documented BMI, qualifying comorbidities, a supervised weight management program, nutrition and psychological evaluations, and a prior authorization that names the exact procedure. The surgical claim itself, with Z68 BMI codes and E66 diagnoses, pays only when all of that lines up with the authorized CPT code.
What makes bariatric surgery billing different
Bariatric claims are judged against coverage criteria as much as against coding rules, which changes how the whole cycle runs.
- Primary procedures use 43775 for laparoscopic sleeve gastrectomy, 43644 for laparoscopic Roux-en-Y bypass, 43645 when the bypass includes small intestine reconstruction, and 43770 through 43774 for adjustable gastric band placement, revision and removal.
- Every claim carries an E66.01 or E66.2 obesity diagnosis paired with the matching Z68.35 through Z68.45 BMI code, and the comorbidities that justified surgery, such as E11.9 or G47.33, are reported as secondary diagnoses.
- Revisions and conversions are coded by the operative detail: 43848 for open revision, 43860 or 43865 for gastrojejunal anastomosis revision, and the unlisted 43659 with a comparison code when a conversion has no specific laparoscopic code.
- Procedures carry a ninety-day global, so unplanned returns to the operating room bill with modifier 78, related post-op visits are not billed, and unrelated problems seen in the global use modifier 24 on the visit.
Denials we see most in bariatric surgery
Every denial gets a root cause, a fix and a feedback loop, so the same denial stops coming back.
Procedure differs from authorization
A sleeve was authorized and a bypass was performed, or a hiatal hernia repair was added. Core MB updates the authorization when the plan changes and documents intraoperative findings for a retro request.
Contract excludes bariatric surgery
The employer plan carries a bariatric exclusion that eligibility did not surface. Core MB verifies the benefit by procedure before scheduling and reviews self-pay arrangements with the practice when the benefit is excluded.
How Core MB bills for bariatric surgery
Core MB manages the bariatric pathway from the first program visit through the global period, tracking each payer's criteria, submitting authorizations with the complete packet, and coding the operation from the operative note. Credentialing for surgeons joining the program runs in the same client portal. Credentialing for new providers runs in the same system, tracked live in your client portal.
- Prior authorization packets assemble the program notes, BMI trend, clearances and labs each payer requires before the surgery date is confirmed.
- Operative notes are reviewed for concurrent procedures such as hiatal hernia repair or cholecystectomy that may bill separately with modifier 51.
- Global period tracking separates covered post-op visits from unrelated encounters and from complications treated in the operating room.
Everything in the service
Core MB runs the full bariatric billing cycle so your program coordinator can focus on patients, from benefit verification through operative coding, posting, follow-up and reporting.
- Insurance verification and eligibility checks
- Charge entry and specialty-specific coding review
- Claim scrubbing and electronic submission
- Payer follow-up on every open claim
- Denial management and appeals
- Payment posting and reconciliation
- Accounts receivable recovery
- Patient statements and balance support
- Monthly reporting you can read in five minutes
- Provider credentialing and payer enrollment
Bariatric surgery billing questions
Can a hiatal hernia repair be billed with a sleeve gastrectomy?
When the surgeon documents a hiatal hernia and repairs it with 43281 or 43282 during a 43775, many payers allow both with modifier 51, though some bundle the repair unless it was a separately diagnosed hernia. Core MB checks the payer policy and makes sure the operative note describes the hernia as a distinct finding.
Why was our bariatric surgery denied after the authorization was approved?
Authorizations approve a specific CPT code, surgeon, facility and date range. If any of those change, including a move from an outpatient to inpatient setting, the claim can deny despite approval. Core MB confirms the authorized elements against the scheduled case and updates the request before surgery.
How are revision surgeries for weight regain or band complications handled?
Revisions face stricter review. Payers want the original procedure date, documentation of mechanical failure or complication, and evidence the patient followed the program. Core MB codes removal and conversion from the operative detail, uses 43774 or 43659 with a comparison code as appropriate, and submits the complete history with the authorization.
How do we get started with Core MB for bariatric surgery billing?
Submit the quote form with your case volume, payer mix and program structure. Core MB builds the authorization checklist and starts the transition alongside your current billing so pending authorizations are not interrupted. Credentialing for new surgeons and program providers can begin at the same time.
Bariatric billing that clears criteria before the surgery date
Core MB tracks every coverage requirement, authorizes the right procedure, codes the operative note and follows the claim through the global period and beyond.