TL;DR: Aetna, a CVS Health company, modified CPB 0157 governing obesity surgery coverage, effective February 27, 2026. Here's what billing teams need to know before submitting claims.
This update to the Aetna obesity surgery coverage policy touches CPT codes for bariatric procedures including RYGB, sleeve gastrectomy, SADI-S, and SIPS—plus EGD codes like 43236 and 43253. The policy also explicitly excludes intragastric balloon codes 43290, 43291, and 0813T from covered indications. If your practice bills bariatric surgery under Aetna plans, the BMI thresholds, co-morbidity criteria, and behavioral intervention requirements all have direct impact on prior authorization approvals and claim denial risk.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna, a CVS Health company |
| Policy | Obesity Surgery — CPB 0157 |
| Policy Code | CPB 0157 |
| Change Type | Modified |
| Effective Date | February 27, 2026 |
| Impact Level | High |
| Specialties Affected | Bariatric Surgery, General Surgery, Gastroenterology, Pediatric Surgery |
| Key Action | Audit prior authorization workflows and BMI documentation against updated CPB 0157 criteria before submitting new bariatric claims |
Aetna Obesity Surgery Coverage Criteria and Medical Necessity Requirements 2026
The Aetna obesity surgery coverage policy under CPB 0157 covers six primary bariatric procedures when specific medical necessity criteria are met. Those procedures are: open or laparoscopic Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy, biliopancreatic diversion (BPD) with or without duodenal switch (DS), laparoscopic adjustable silicone gastric banding (LASGB), single anastomosis duodenal-ileal switch (SADI-S), and sleeve gastrectomy with single anastomosis duodeno-ileal bypass (SIPS).
Adult criteria (age 18 and older) require documented persistent severe obesity. That means one of the following BMI thresholds, measured before the preoperative preparatory program:
| # | Covered Indication |
|---|---|
| 1 | BMI exceeding 40 (or exceeding 37.5 for persons of Asian ancestry), OR |
| 2 | BMI greater than 35 (or exceeding 32.5 for persons of Asian ancestry) with at least one qualifying severe co-morbidity |
The qualifying co-morbidities at the BMI-over-35 threshold are specific. Aetna accepts: clinically significant obstructive sleep apnea meeting criteria in CPB 0004; coronary heart disease with objective documentation (exercise stress test, radionuclide stress test, pharmacologic stress test, stress echocardiography, CT angiography, coronary angiography, heart failure, or prior myocardial infarction); medically refractory hypertension (BP greater than 140 mmHg systolic and/or 90 mmHg diastolic despite concurrent use of three antihypertensive agents from different classes); type 2 diabetes mellitus; or nonalcoholic steatohepatitis (NASH).
NASH deserves a note. Aetna accepts NASH documentation via liver biopsy or advanced hepatic fibrosis confirmed by FibroScan, FibroTest-ActiTest, magnetic resonance elastography, or Enhanced Liver Fibrosis (ELF) test. If your team is submitting NASH as the qualifying co-morbidity, make sure the documentation method matches one of those accepted tools. Vague clinical notes won't hold up.
Adolescent criteria apply to patients who have completed bone growth—generally age 13 in girls and age 15 in boys. The threshold is BMI exceeding 40. There is no co-morbidity pathway for adolescents the way there is for adults.
Beyond BMI and co-morbidity, medical necessity also requires documented prior failed weight loss attempts and participation in an intensive multicomponent behavioral intervention. That intervention must be documented in the medical record, and records must show compliance. This is a prior authorization pressure point. Incomplete behavioral documentation is one of the fastest routes to a claim denial.
One procedural note that affects reimbursement: concurrent hiatus hernia repair performed during bariatric surgery is considered incidental. Aetna will not separately reimburse it. Don't bill CPT 43281, 43282, 43332, 43333, 43334, 43335, 43336, or 43337 as separate procedures when performed at the same time as a covered bariatric surgery. Those codes appear in the policy's "related codes" section—but the source specifically identifies them as incidental to bariatric surgery and not separately reimbursable.
Plan-level exclusions are a real variable here. Most Aetna HMO and QPOS plans exclude obesity surgery unless Aetna specifically approves it. Some plans exclude surgical obesity treatment entirely. Check the member's specific benefit plan before assuming coverage applies. This is not a uniform benefit across Aetna products.
Aetna Obesity Surgery Exclusions and Non-Covered Indications
Three codes are explicitly not covered under CPB 0157 for any obesity surgery indication:
| # | Excluded Procedure |
|---|---|
| 1 | 0813T — Volume adjustment of intragastric bariatric balloon via esophagogastroduodenoscopy |
| 2 | 43290 — EGD with deployment of intragastric bariatric balloon |
| 3 | 43291 — EGD with removal of intragastric bariatric balloon(s) |
Aetna considers intragastric balloon procedures not covered for the indications listed in CPB 0157. This aligns with the broader payer trend of excluding endoscopic weight loss devices that lack long-term outcomes data. If a patient or provider asks about balloon procedures, the answer under this coverage policy is clear: no coverage.
Don't confuse 43290 and 43291 with the covered EGD codes. CPT 43236 (EGD with directed submucosal injection) and CPT 43253 (EGD with transendoscopic ultrasound-guided transmural injection) are covered when selection criteria are met. The distinction is the clinical purpose of the endoscopy, not just the procedure category.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| RYGB — open or laparoscopic | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| Sleeve gastrectomy — open or laparoscopic | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| BPD with or without DS | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| LASGB | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| SADI-S — open or laparoscopic | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| SIPS — open or laparoscopic | Covered | Per bariatric CPT suite | BMI and behavioral criteria required |
| EGD with submucosal injection | Covered | 43236 | Must meet selection criteria |
| EGD with transmural injection (ultrasound-guided) | Covered | 43253 | Must meet selection criteria |
| Intragastric balloon — deployment | Not Covered | 43290 | Explicitly excluded in CPB 0157 |
| Intragastric balloon — removal | Not Covered | 43291 | Explicitly excluded in CPB 0157 |
| Intragastric balloon — volume adjustment | Not Covered | 0813T | Explicitly excluded in CPB 0157 |
| Concurrent hiatus hernia repair | Not Separately Reimbursable | 43281, 43282, 43332–43337 | Incidental to bariatric procedure |
| Adolescent bariatric surgery (post bone growth) | Covered | Per bariatric CPT suite | BMI >40 required; no co-morbidity pathway |
| NASH as qualifying co-morbidity | Covered (as qualifying condition) | N/A | Must document via liver biopsy or approved fibrosis test |
Aetna Obesity Surgery Billing Guidelines and Action Items 2026
The effective date of February 27, 2026 is already here. If you haven't reviewed your workflows against the updated CPB 0157 criteria, do it now.
| # | Action Item |
|---|---|
| 1 | Audit your prior authorization checklists against the updated BMI thresholds. Confirm your team is using the Asian ancestry BMI thresholds (BMI >37.5 for surgery without co-morbidity; BMI >32.5 with co-morbidity) in addition to the standard thresholds. Missing this distinction causes unnecessary denials for a specific patient population. |
| 2 | Verify behavioral intervention documentation is in the chart before submitting prior auth. Aetna requires documented compliance with an intensive multicomponent behavioral intervention. "Patient counseled on diet and exercise" won't pass scrutiny. The record must show the intervention meets Aetna's specific program criteria. |
| 3 | Remove 43290, 43291, and 0813T from any bariatric surgery charge capture templates. These codes are not covered under CPB 0157. If your system auto-populates EGD codes alongside bariatric procedures, confirm the balloon codes can't slip through. |
| 4 | Stop billing concurrent hiatus hernia repair separately. Codes 43281, 43282, and 43332–43337 are not separately reimbursable when performed incidentally during bariatric surgery. If these codes appear on a claim alongside bariatric CPTs, expect a claim denial or a demand for repayment on audit. |
| 5 | Confirm NASH documentation method before submitting co-morbidity justification. If you're using NASH to meet the BMI >35 co-morbidity threshold, the supporting documentation must come from a liver biopsy or one of the four accepted fibrosis tests. Check CPB 0690 for the hepatic fibrosis testing criteria Aetna cross-references. |
| 6 | Check the member's specific Aetna plan type before assuming coverage applies. HMO and QPOS plans may exclude bariatric surgery entirely. Verify benefit plan descriptions for every patient before scheduling. This one step prevents the most frustrating denials—the ones where coverage simply doesn't exist for that plan type. |
| 7 | Confirm adolescent cases meet bone-growth completion criteria. For adolescent patients, document that bone growth is complete (typically age 13+ in girls, 15+ in boys) and that BMI exceeds 40. There is no co-morbidity pathway for adolescents, so the BMI threshold is the only route to coverage. |
If your mix includes high volumes of Aetna bariatric claims or you're seeing denial patterns that predate this update, loop in your compliance officer before the next authorization cycle. The interaction between plan-level exclusions and CPB 0157 criteria is complex enough that a policy-level review is worth the time.
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Obesity Surgery Under CPB 0157
Covered CPT Codes (When Selection Criteria Are Met)
| Code | Type | Description |
|---|---|---|
| 43236 | CPT | Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance |
| 43253 | CPT | Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided transmural injection |
Not Covered / Explicitly Excluded CPT Codes
| Code | Type | Description | Reason |
|---|---|---|---|
| 0813T | CPT | EGD with volume adjustment of intragastric bariatric balloon | Not covered for indications listed in CPB 0157 |
| 43290 | CPT | EGD with deployment of intragastric bariatric balloon | Not covered for indications listed in CPB 0157 |
| 43291 | CPT | EGD with removal of intragastric bariatric balloon(s) | Not covered for indications listed in CPB 0157 |
Hiatus Hernia Repair CPT Codes (Not Separately Reimbursable When Incidental to Bariatric Surgery)
CPB 0157 specifically identifies concurrent hiatus hernia repair during bariatric surgery as incidental and not separately reimbursable. Do not bill these codes as standalone procedures when performed alongside a covered bariatric surgery.
| Code | Type | Description |
|---|---|---|
| 43281 | CPT | Laparoscopy, surgical, repair of paraesophageal hernia, includes fundoplasty, when performed; without mesh |
| 43282 | CPT | Laparoscopy, surgical, repair of paraesophageal hernia; with implantation of mesh |
| 43332 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via laparotomy; without mesh |
| 43333 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via laparotomy; with implantation of mesh or other prosthesis |
| 43334 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via thoracotomy; without mesh |
| 43335 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via thoracotomy; with implantation of mesh or other prosthesis |
| 43336 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via thoracoabdominal incision; without mesh |
| 43337 | CPT | Repair, paraesophageal hiatal hernia (including fundoplication), via thoracoabdominal incision; with implantation of mesh or other prosthesis |
Other CPT Codes Related to CPB 0157
The following codes appear in CPB 0157 as related to the policy. The source does not assign specific reimbursement restrictions to these codes beyond their inclusion in the policy. Verify coverage and billing rules for each against the full CPB 0157 source and the member's benefit plan before submitting claims.
| Code | Type | Description |
|---|---|---|
| 43659 | CPT | Unlisted laparoscopy procedure, stomach |
| 43800 | CPT | Pyloroplasty (prophylactic) |
| 43999 | CPT | Unlisted procedure, stomach |
| 47562–47620 | CPT | Cholecystectomy (various approaches and specifications) |
| 49324 | CPT | Laparoscopy, surgical; with insertion of tunneled intraperitoneal catheter |
| 49326 | CPT | Laparoscopy, surgical; with omentopexy (omental tacking procedure) |
| 49621 | CPT | Repair of parastomal hernia, any approach, initial or recurrent |
| 74240 | CPT | Radiologic examination, upper gastrointestinal tract, with scout abdominal radiograph(s) and delayed images |
| 74246 | CPT | Radiologic examination, upper gastrointestinal tract, with scout abdominal radiograph(s) and delayed images (air contrast) |
Note: The full policy references 120 CPT codes. The codes above reflect those explicitly categorized in the provided policy data. Review the full CPB 0157 at the Aetna source for the complete code list.
ICD-10-CM Codes
CPB 0157 references 104 ICD-10-CM diagnosis codes. The full ICD-10 code set was not available in the policy data excerpt used for this summary. Review the full CPB 0157 at the Aetna source for the complete ICD-10-CM code list before submitting claims.
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