TL;DR: The Centers for Medicare & Medicaid Services modified NCD 87 governing the CMS gastric freezing coverage policy, effective March 7, 2026. Gastric freezing is non-covered under Medicare — full stop. Here's what billing teams need to know.
This update to NCD 87 in the CMS system confirms what most billing teams already suspected: gastric freezing for chronic peptic ulcer disease has no path to Medicare reimbursement. The policy does not list specific CPT or HCPCS codes. But that doesn't mean your team can ignore it.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | CMS (Centers for Medicare & Medicaid Services) |
| Policy | Gastric Freezing |
| Policy Code | NCD 87 |
| Change Type | Modified |
| Effective Date | 2026-03-07 |
| Impact Level | Low (financial exposure is minimal if your charge capture is clean) |
| Specialties Affected | Gastroenterology, General Surgery, Internal Medicine |
| Key Action | Audit your charge capture and superbills to confirm gastric freezing is not billable to Medicare — before March 7, 2026 |
CMS Gastric Freezing Coverage Criteria and Medical Necessity Requirements 2026
The CMS gastric freezing coverage policy under NCD 87 is about as clear as Medicare policies get: this procedure is non-covered because it is considered obsolete. There are no medical necessity criteria to meet. There is no prior authorization pathway that unlocks coverage. There is no exception process documented in the National Coverage Determination.
Gastric freezing was a non-surgical treatment for chronic peptic ulcer disease that saw significant use roughly 20 years ago. Physicians used it to cool the stomach lining as a way to reduce acid secretion. It fell out of favor — and eventually out of practice — for three documented reasons.
First, the complication rate was high. Second, any improvement patients experienced was temporary, not durable. Third, double-blind, controlled clinical trials found it simply didn't work. That's a clean sweep of the reasons a procedure gets abandoned.
CMS formally classifies this procedure as obsolete. Under Medicare billing guidelines, a procedure classified as obsolete does not meet the medical necessity standard required for reimbursement. No clinical documentation, no physician attestation, and no diagnosis code combination will change that outcome.
Whether gastric freezing is covered under Medicare is not an open question. It isn't. Any claim submitted for this service will result in claim denial.
CMS Gastric Freezing Exclusions and Non-Covered Indications
The entire procedure is excluded. There are no covered sub-indications, no limited-coverage scenarios, and no population-specific exceptions in NCD 87.
The policy applies to gastric freezing for chronic peptic ulcer disease specifically. If a provider encounters a patient presenting with chronic peptic ulcer disease, gastric freezing is not a reimbursable treatment option under any Medicare billing guidelines — not as a primary procedure, not as an adjunct, and not under a different clinical framing.
This is worth stating plainly because billing teams occasionally inherit superbills or charge masters that haven't been audited in years. A procedure that was once common, even if rarely performed today, can linger in a charge capture system long after it becomes non-covered. That's the real risk here — not that anyone is performing gastric freezing regularly, but that the code infrastructure to bill it might still exist somewhere in your system.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Gastric freezing for chronic peptic ulcer disease | Not Covered | No specific codes listed in NCD 87 | Classified as obsolete by CMS. No medical necessity pathway. Claim denial expected on any submission. |
CMS Gastric Freezing Billing Guidelines and Action Items 2026
This policy modification has a low day-to-day financial impact for most billing teams. But "low impact" only holds if your charge capture is clean. Here's what to do before the effective date of March 7, 2026.
| # | Action Item |
|---|---|
| 1 | Audit your charge master and superbills. Search for any line item related to gastric freezing. If it's there, flag it for removal or mark it as non-billable to Medicare. This is a one-time cleanup task, but it matters. |
| 2 | Check your EHR order sets. Some legacy EHR configurations include historical procedure order sets that were built years ago and never updated. If gastric freezing appears as an orderable procedure in your system, work with your EHR team to disable it or add a hard stop that prevents Medicare billing. |
| 3 | Brief your coding team. Make sure your coders know NCD 87 classifies gastric freezing as obsolete and non-covered. If a provider ever documents this treatment in a note — even as a historical reference — your coding team needs to know not to translate it into a billable line item. |
| 4 | Do not submit claims for this service to Medicare. No prior authorization request, no appeal strategy, and no ABN will recover payment here. The procedure is excluded at the national level. An Advance Beneficiary Notice (ABN) won't protect you either — ABNs apply to services that might not be covered based on medical necessity. A service that is categorically non-covered is a different situation. Don't give patients false expectations about self-pay recovery. |
| 5 | Document any patient inquiries. If a patient or provider asks about gastric freezing as a treatment option, document that it is not a covered Medicare service and that the procedure is considered clinically obsolete. This protects your practice if a question ever escalates. |
If you're reviewing this policy as part of a broader NCD audit and you're unsure how it interacts with your payer mix or any state-level Medicaid policies, talk to your compliance officer before March 7, 2026.
| 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 Gastric Freezing Under NCD 87
No Specific Codes Listed in NCD 87
The policy data for NCD 87 does not include specific CPT, HCPCS Level II, or ICD-10-CM codes. This is not unusual for a National Coverage Determination governing an obsolete procedure.
| Detail | Status |
|---|---|
| CPT Codes | None listed in NCD 87 |
| HCPCS Codes | None listed in NCD 87 |
| ICD-10-CM Codes | None listed in NCD 87 |
What this means for gastric freezing billing: there is no assigned procedure code that CMS has specifically flagged for denial tracking in this NCD. The coverage policy is categorical — the procedure is obsolete and non-covered regardless of how it might be coded.
If your team ever encounters a scenario where a provider insists on submitting a claim for this service, contact your Medicare Administrative Contractor (MAC) directly. Your MAC can clarify whether a local coverage determination (LCD) applies in your region, or whether a specific code would trigger an automatic denial. Don't assume the absence of a listed code creates a billing opportunity. It doesn't.
The real issue here is that NDCs without assigned codes are sometimes misread as ambiguous. They aren't. "Non-covered because it's obsolete" is one of the clearest possible policy positions. The lack of a specific code reflects how rarely this procedure is encountered — not any uncertainty about coverage.
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