Esophageal Manometry | CMS Coverage Update

Summary: The Centers for Medicare & Medicaid Services modified its esophageal manometry coverage policy, effective May 15, 2026. Here's what billing teams need to know before that date.

CMS esophageal manometry coverage policy changes affect gastroenterology and motility practices that bill Medicare for diagnostic esophageal testing. The policy document does not list specific CPT or HCPCS codes — we'll cover that limitation and what it means for your billing team below. If you bill esophageal manometry to Medicare patients, review your documentation and medical necessity criteria before May 15, 2026.

CMS Esophageal Manometry Coverage Criteria and Medical Necessity Requirements 2026

The CMS esophageal manometry coverage policy was modified with an effective date of May 15, 2026. The published policy document does not include a detailed clinical summary or enumerated coverage criteria in the source data available at this time. That's not unusual for a modification — CMS sometimes publishes a coverage decision update before full documentation is finalized at the Medicare Administrative Contractor level.

Here's what that means for your billing team right now: the absence of published criteria in the source document does not mean criteria don't exist. It means you need to verify current coverage criteria directly with your MAC before billing under the updated policy.

Esophageal manometry is generally used to evaluate esophageal motility disorders — conditions like achalasia, diffuse esophageal spasm, scleroderma esophagus, and ineffective esophageal motility. Under Medicare billing guidelines, coverage historically requires that the procedure is medically necessary to evaluate symptoms or conditions that won't respond to empiric treatment, or where the diagnosis is needed to direct surgical or therapeutic decisions.

Medical necessity documentation for esophageal manometry typically needs to show a clinical indication — dysphagia, unexplained chest pain, pre-operative evaluation for anti-reflux surgery, or suspected motility disorder — that justifies the test over less costly alternatives. If your providers are ordering manometry without those clinical hooks in the chart, your denial rate will climb after May 15, 2026.

Whether prior authorization is required for esophageal manometry under Medicare depends on your MAC jurisdiction. Traditional Medicare fee-for-service does not universally require prior authorization for esophageal manometry, but Medicare Advantage plans operating under CMS oversight frequently do. Check your specific plan contracts and your MAC's local coverage determination if one exists for your region.

The real issue here is that a "modified" designation without detailed criteria creates a window of uncertainty. If your practice relies heavily on Medicare reimbursement for esophageal motility testing, you need to know whether this modification tightened criteria, expanded coverage, or changed documentation requirements. Contact your MAC directly — and if you have a billing consultant or compliance officer, loop them in before May 15, 2026.

CMS Esophageal Manometry Exclusions and Non-Covered Indications

The policy source data does not enumerate specific exclusions or non-covered indications for this modification. That said, Medicare has historically treated certain uses of esophageal manometry as non-covered or investigational.

Screening manometry — performed in asymptomatic patients without a documented clinical indication — does not meet medical necessity standards under Medicare. Routine use before any esophageal procedure without a specific motility question also risks denial.

High-resolution manometry with advanced topographic analysis has been an area of inconsistent coverage across MAC jurisdictions. Some MACs cover high-resolution esophageal pressure topography (EPT) under standard manometry codes; others treat it as investigational or require documentation that standard manometry was insufficient. If you bill high-resolution protocols, verify coverage with your MAC before assuming this modification extends or confirms coverage.

Esophageal manometry performed solely for research purposes or outside established clinical indications will not qualify for Medicare reimbursement. Make sure your order documentation reflects clinical decision-making, not protocol enrollment.

Coverage Indications at a Glance

Because the source policy document does not provide enumerated indication-level criteria, the table below reflects standard Medicare coverage principles for esophageal manometry. Verify these against your MAC's local coverage determination and the updated policy document when CMS publishes full criteria.

CMS Esophageal Manometry Billing Guidelines and Action Items 2026

The policy source data does not include a full criteria list, which makes this change harder to act on immediately. That's exactly why you need to move now rather than wait for full documentation.

CPT, HCPCS, and ICD-10 Codes for Esophageal Manometry Under This Policy

The policy source document does not list specific CPT, HCPCS, or ICD-10 codes. The codes below are not sourced from the policy data — the policy data contains no code information. Do not treat this section as a confirmed code list for this specific modification.

For reference, esophageal manometry billing typically involves the following CPT codes under standard Medicare billing guidelines. Confirm each code's covered status with your MAC and the updated policy document once full criteria are published.

Commonly Used CPT Codes for Esophageal Manometry (Not Confirmed by Policy Data)

Do not bill these codes based on this table alone. Confirm coverage status for each code against the final published policy and your MAC's LCD. The policy data provided to produce this article contains no code information.

ICD-10-CM Diagnosis Codes Commonly Used to Support Medical Necessity

Again — these codes are not sourced from the policy document. They reflect standard coding practice for esophageal manometry claims. Verify each against your MAC's LCD and the updated CMS policy before the May 15, 2026 effective date.