CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Peroral endoscopic myotomy (POEM) for esophageal achalasia

This policy governs the coverage stance for peroral endoscopic myotomy (POEM) as a treatment for pediatric and adult esophageal achalasia for Blue Cross Blue Shield - Rhode Island members.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyPeroral endoscopic myotomy (POEM) for esophageal achalasia

Policy CodePolicy N/A

Change TypeNo material changes

Effective DateJun 1, 2020

Next Review DateN/A

Key ActionVerify member benefits and eligibility with the payer before performing services.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

Not covered / NMNCoverage stance (MA & Commercial)

43497Billing code (from 01/01/2022)

10/100kPrevalence

~1%Perforation risk

CitedPediatric evidence

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Not covered / Not medically necessary

Coverage determination

Policy stance: POEM is considered not covered for Medicare Advantage plans and not medically necessary for Commercial products for pediatric and adult esophageal achalasia because the evidence is insufficient to determine the effects of the technology on health outcomes.

Applies to both pediatric and adult patients as stated

Peroral endoscopic myotomy (POEM) is not covered for Medicare Advantage members and is considered not medically necessary for Commercial products when used to treat pediatric or adult esophageal achalasia because the evidence is insufficient to determine effects on health outcomes.

For Commercial products, POEM is considered not medically necessary for both pediatric and adult esophageal achalasia. The rationale cited in the policy is that available evidence—including systematic reviews of observational studies, a randomized trial in adults, nonrandomized comparative studies, and case series—does not adequately demonstrate effects on meaningful health outcomes or long-term safety; observational data are subject to potential selection bias and case series cannot establish comparative efficacy.

Coverage and payment determinations are governed by the member's subscriber agreement, member certificate, and/or the employer agreement; those documents supersede this medical policy. Providers should confirm member-specific benefits and eligibility with the payer's provider call center.

Services determined to be not medically necessary (or medically necessary services that are non-covered benefits) may not be covered and could affect provider billing. Providers may not charge the member for such services unless the member has been informed in advance and has agreed in writing to accept financial responsibility; refer to applicable participation agreements for additional provisions.

Provider Billing & Authorization Actions

Prior Authorization

Prior Authorization & Benefits Verification

Prior authorization: Not applicable to this policy. However, benefits vary by contract — providers must verify prior authorization requirements with the member's benefit booklet or the payer before scheduling.

Verify prior authorization requirements with the payer's provider call center or the member's Evidence of Coverage.

Denial Risk

Denial Risk for POEM Claims

POEM (peroral endoscopic myotomy) is considered not covered/not medically necessary for Medicare Advantage and Commercial products because the evidence is insufficient to determine clinical benefit. Submitting POEM without confirming member benefits carries a significant denial risk.

Denial risk: High for POEM claims — claims may be denied as not covered or not medically necessary.
If services are determined not medically necessary or non-covered, provider may be financially liable unless the member signed an advance written agreement accepting financial responsibility.

Documentation Required

Claim Filing & Documentation

Claims must use the appropriate CPT code based on date of service and complete documentation supporting the procedure. Verify billing guidance with payer before claim submission.

Effective 1/01/2022 use CPT 43497 (Lower esophageal myotomy, transoral [POEM]).
For dates of service before 1/01/2022 use CPT 43499 (Unlisted procedure, esophagus).
Include operative report, anesthesia record, pre/post procedure notes, and any imaging or testing that documents medical necessity and prior conservative treatments, if applicable.

Note

Comparative Treatment Context

Consider established alternative treatments for achalasia when discussing care options and prior to pursuing POEM, since POEM is not considered covered/medically necessary under this policy.

Comparative options: botulinum toxin injections, pneumatic dilation, and laparoscopic Heller myotomy.
Note: Pneumatic dilation and Heller myotomy are established treatments with longer-term efficacy; Heller myotomy is more invasive and associated with surgical risks (eg, perforation).

Prior Authorization

Verify Benefits & Eligibility

Before performing or billing for POEM, providers must verify member eligibility, benefits, and any plan-specific coverage rules. Contact the payer's provider call center or review the member's Evidence of Coverage/Subscribers Agreement.

Verify member eligibility and coverage for the specific product (Medicare Advantage vs Commercial).
Confirm whether POEM is a covered or non-covered benefit for the member and obtain any required authorizations or financial agreements in writing if service may be non-covered.

Terms and Definitions

POEM — definition

ProcedurePeroral endoscopic myotomy (POEM) — a novel endoscopic procedure performed under general anesthesia in which an endoscopic submucosal tunnel is created via the oral route and an inner circular muscle myotomy of the lower esophageal sphincter is performed.

ApproachNatural-orifice (transoral) entry with submucosal tunneling of the endoscope to the esophagogastric junction.

Target tissueInner, circular fibers of the lower esophageal sphincter divided through the submucosal tunnel.

Intended effectReduce obstruction at the lower esophageal sphincter to improve passage of food into the stomach and relieve dysphagia.

Esophageal achalasia — definition and clinical features

DefinitionEsophageal achalasia — a disorder characterized by reduced numbers of neurons in the esophageal myenteric plexuses and reduced peristaltic activity, causing difficulty swallowing.

Common clinical featuresDysphagia, regurgitation, coughing, choking, aspiration pneumonia, esophagitis, ulceration, and weight loss.

Epidemiology (US)Estimated prevalence about 10 cases per 100,000 and incidence about 0.6 cases per 100,000 per year.

POEM — additional definition and contrast with other therapies

How POEM differs from surgical myotomyPOEM divides only the inner, circular lower esophageal sphincter muscle layers via a submucosal tunnel, whereas laparoscopic (Heller) myotomy involves complete division of both circular and longitudinal muscle layers and requires laparoscopy and surgical dissection.

Comparison with pneumatic dilationPneumatic dilation is an established non-surgical therapy; POEM is an endoscopic myotomy alternative that has been compared with pneumatic dilation in comparative studies and trials.

Anesthesia and settingPOEM is performed with the patient under general anesthesia and uses endoscopic techniques developed in Japan.

RationaleBy cutting dysfunctional inner circular muscle fibers that prevent the lower esophageal sphincter from opening, POEM aims to improve gastric emptying of swallowed food while using a less invasive, natural-orifice approach.

Clinical Background

Esophageal achalasia is a disorder characterized by loss of neurons in the esophageal myenteric plexus with reduced peristaltic activity and impaired relaxation of the lower esophageal sphincter, leading to progressive dysphagia, regurgitation, aspiration risk, esophagitis, and weight loss. Peroral endoscopic myotomy (POEM) is an endoscopic technique performed under general anesthesia that creates a submucosal tunnel and divides the inner circular muscle of the lower esophageal sphincter via the oral route; it is less invasive than a laparoscopic Heller myotomy but has procedure-specific risks reported in the literature, including subcutaneous emphysema, pneumothorax, pleural effusion, and a substantial incidence of postprocedural gastroesophageal reflux disease requiring treatment.

OpenPayer

Peroral endoscopic myotomy (POEM) for esophageal achalasia

Coverage Determination

Billing Codes

Provider Billing & Authorization Actions

Terms and Definitions

Clinical Background