TL;DR: The Centers for Medicare & Medicaid Services modified NCD 87, the National Coverage Determination governing gastric freezing for chronic peptic ulcer disease, effective March 7, 2026. The procedure is classified as obsolete and non-covered under Medicare. This policy lists no specific CPT or HCPCS codes. Here's what billing teams need to know.
The CMS gastric freezing coverage policy makes one thing plain: this procedure has no path to reimbursement under Medicare. NCD 87 in the CMS system formally designates gastric freezing as an abandoned, ineffective treatment. If your team encounters a claim for this service, it will be denied. Full stop.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | CMS (Centers for Medicare & Medicaid Services) |
| Policy | Gastric Freezing — NCD 87 |
| Policy Code | NCD 87 |
| Change Type | Modified |
| Effective Date | 2026-03-07 |
| Impact Level | Low (procedure is obsolete; rarely billed) |
| Specialties Affected | Gastroenterology, General Surgery, Internal Medicine |
| Key Action | Confirm your charge capture has no active codes mapped to gastric freezing services; any claim for this procedure will be denied. |
CMS Gastric Freezing Coverage Criteria and Medical Necessity Requirements 2026
The short version: there are no coverage criteria for gastric freezing under Medicare, because CMS does not cover it at all. Medical necessity is never established for this procedure. CMS has determined the procedure is obsolete.
NCD 87 is the National Coverage Determination governing Medicare coverage of gastric freezing for chronic peptic ulcer disease. The policy reflects a clinical reality that has been settled for decades. Gastric freezing was a non-surgical treatment for chronic peptic ulcer disease that gained traction roughly 50 years ago. Double-blind, controlled clinical trials showed it didn't work — and the complication rate was high.
Any improvement patients experienced was temporary. The medical community abandoned the procedure long before this NCD was written. CMS codified that consensus into a formal non-coverage determination, and the March 7, 2026 modification keeps that position intact.
From a billing standpoint, medical necessity cannot be established for a procedure CMS considers obsolete. No clinical documentation, no letter of medical necessity, and no prior authorization request will change the outcome. Don't submit the claim.
This coverage policy does not list prior authorization requirements — not because prior auth is waived, but because the procedure is categorically excluded. Prior authorization presupposes that coverage is possible under some conditions. For gastric freezing billing, no such conditions exist.
CMS Gastric Freezing Exclusions and Non-Covered Indications
This entire procedure is excluded. There are no covered indications, no covered patient subgroups, and no covered settings for gastric freezing under Medicare.
The NCD 87 exclusion is grounded in three documented failures: a high complication rate, only temporary patient improvement, and a demonstrated lack of effectiveness in controlled trials. CMS doesn't classify gastric freezing as experimental or investigational — it classifies it as obsolete. That's a harder designation. Experimental procedures sometimes move toward coverage as evidence develops. Obsolete procedures don't.
The real issue here is that this designation has been in place for a long time. The March 7, 2026 modification doesn't create new exposure — but it confirms that any billing team still carrying dormant charge codes for this service should clean house.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Gastric freezing for chronic peptic ulcer disease | Not Covered | None listed in NCD 87 | Procedure classified as obsolete; no CPT or HCPCS codes assigned; claim denial is automatic |
CMS Gastric Freezing Billing Guidelines and Action Items 2026
The policy is straightforward. Your action items should be too.
| # | Action Item |
|---|---|
| 1 | Audit your charge capture before March 7, 2026. Search your charge description master (CDM) for any entries tied to gastric freezing. If you find one, flag it for removal or suppression. A live charge code for a non-covered, obsolete procedure is a liability. |
| 2 | Confirm no active CPT or HCPCS codes are mapped to this service. The policy lists no specific codes, but some legacy systems carry unlisted procedure codes or custom internal codes for historical services. Check with your coding team to confirm nothing is active. |
| 3 | Train front-desk and scheduling staff to recognize and refuse to schedule this procedure for Medicare patients. A claim denial is costly. A prior authorization request for a non-covered service wastes staff time and creates documentation you don't want in the record. |
| 4 | Do not submit claims expecting a denial letter for secondary payer purposes. Some billing teams intentionally seek Medicare denials to bill secondary payers. For an obsolete, non-covered procedure like gastric freezing, that strategy creates compliance risk without a meaningful upside. Talk to your compliance officer before attempting this. |
| 5 | Check whether any commercial or Medicaid plans in your payer mix have separate gastric freezing policies. NCD 87 governs Medicare only. Your Medicare Administrative Contractor follows this NCD nationally — there's no local coverage determination that overrides an NCD. But if you bill commercial payers or Medicaid managed care, those plans set their own coverage policy independently. |
| 6 | If a provider has a clinical question about peptic ulcer disease treatment options, redirect to current evidence-based billing guidelines for services that are actually covered. Endoscopy, pharmacotherapy management, and H. pylori testing all have established reimbursement pathways under Medicare. |
| 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
This is the section most billing teams come for. Here's the honest answer: NCD 87 lists no specific CPT codes, HCPCS codes, or ICD-10-CM diagnosis codes.
That's not an oversight — it reflects the nature of the policy. Gastric freezing is obsolete. There's no active CPT code assigned to the procedure in the current AMA code set. A procedure that hasn't been routinely performed in decades doesn't get a live billing code.
Covered CPT Codes
None. No CPT or HCPCS codes are covered under NCD 87. The procedure is non-covered in all circumstances.
Not Covered / Codes Associated With Gastric Freezing
| Code | Type | Description | Reason |
|---|---|---|---|
| None listed | — | NCD 87 does not assign specific codes to gastric freezing | Procedure is classified as obsolete; no active CPT or HCPCS code is assigned |
Key ICD-10-CM Diagnosis Codes
No ICD-10-CM codes are specified in NCD 87. The underlying diagnosis — chronic peptic ulcer disease — has ICD-10-CM codes in the K25–K28 range, but those diagnosis codes do not create any coverage pathway for gastric freezing. The procedure is excluded regardless of diagnosis.
If your team is coding chronic peptic ulcer disease for other covered services, those diagnosis codes are unaffected by this NCD. The exclusion is specific to the gastric freezing treatment, not the underlying condition.
Why This Policy Still Matters in 2026
Here's the honest take on NCD 87: the clinical risk is low. No one is performing gastric freezing. The procedure was abandoned for good reason, and no physician is likely to order it.
The billing risk is also low — but not zero. Legacy CDMs in older practice management systems sometimes carry ghost charge codes for procedures that were active decades ago. A coding error, a mislabeled unlisted procedure code, or a transcription mistake could result in a gastric freezing claim being submitted. That claim will be denied.
More importantly, this modified coverage policy signals that CMS continues to maintain and enforce its NCD library, even for obsolete procedures. The March 7, 2026 effective date is a reminder that these determinations are living documents. CMS can revisit them — and does.
The broader pattern matters here. When CMS modifies an NCD, even one for a procedure no one bills, your Medicare Administrative Contractor updates its processing systems. That means your clearinghouse and MAC-level edits may also refresh. It's worth confirming your practice management system is aligned with the current NCD state before the effective date of March 7, 2026.
If you're unsure whether any legacy codes or billing configurations in your system could inadvertently generate a gastric freezing claim, ask your billing consultant to do a quick CDM review. It's a 20-minute audit. The alternative is a claim denial, a refund demand, or — in a worst case — a compliance flag on a procedure you didn't intend to bill.
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