Prior Authorization / Coverage‑Linked Codes

Prior authorization is required for gastrointestinal manometry procedures when coverage is linked to medical necessity criteria. Include relevant CPT/ICD-10 codes and documentation with the prior authorization request.

• Prior authorization required when selection criteria must be met.
• Attach applicable procedure and diagnosis codes with request.

Prior Authorization for Specialized Motility Testing

Specialized motility testing (eg, antroduodenal manometry, prolonged or pediatric colonic manometry, high‑resolution esophageal manometry) requires prior authorization when used to establish diagnosis or to guide management or surgery. Requests should state the specific motility test, indication, and prior test results.

• Specify test type (eg, antroduodenal, colonic, anorectal, high‑resolution esophageal).
• Provide clinical indication and prior work‑up results (see Required Clinical Documentation callout).

Prior Authorization Requirement (Follow Clinical Policy Bulletin Procedures)

Prior authorization must follow the Clinical Policy Bulletin procedures; absence of authorization or supporting documentation may result in denial. Providers should use payer prior authorization portals or contact the plan per standard procedures.

• Follow Aetna/CPB prior authorization process.
• Lack of required documentation or authorization increases denial risk.

Experimental / Investigational Triggers Denial

The policy designates certain procedures as experimental/investigational for indications not listed as medically necessary. Requests for these indications will be denied.

• Antroduodenal manometry not covered for indications outside listed medically necessary uses.
• Colonic motility studies not covered for indications outside listed medically necessary uses.
• MRI capsule marker methods for whole gut transit are investigational.

Guideline‑Based Limitation Risk

Some services are limited by guideline recommendations and consensus statements (eg, use of colonic manometry primarily in specialized centers, HRM preferred over conventional manometry). Requests inconsistent with guideline‑based limitations may be denied or require additional justification.

• Colonic manometry generally limited to selected/refractory patients or research/specialty centers.
• High‑resolution esophageal manometry preferred over conventional for many indications.
• Guideline-based limits may require additional documentation of necessity.

Codes to Include with Documentation

Include the following codes with documentation when submitting prior authorization or claims: covered CPT codes when selection criteria are met and relevant ICD‑10 diagnoses. If an investigational or not‑covered code/indication is submitted, provide rationale and supporting evidence.

• Attach CPT code(s) for the specific manometry procedure.
• Attach ICD‑10 diagnosis codes supporting the medical necessity.
• If applicable, include related procedure codes (eg, 43235 EGD) used in the diagnostic pathway.

Documentation to Support Surgical Decision‑Making

Documentation should support use of manometry to guide surgical decision‑making when applicable (eg, colonic manometry results used to decide colectomy or cecostomy). Provide description of how results influenced planned surgery and prior non‑surgical management.

• Describe how manometry findings affect the surgical plan (eg, presence/absence of HAPCs, response to provocation).
• Include prior conservative treatments tried and outcomes.
• Provide surgical indication and anticipated benefit tied to manometry results.

Required Clinical Documentation (e.g., Endoscopy First, HRM Preferred)

Required clinical documentation includes: prior diagnostic testing (eg, endoscopy/EGD results, gastric emptying studies, electrogastrography), description of symptoms (eg, dysphagia, refractory constipation, nausea/vomiting), trial of conservative therapies, and rationale for the selected motility test. For esophageal symptoms, endoscopy should generally precede manometry; high‑resolution manometry is preferred.

• Recent endoscopy results when evaluating dysphagia or pre‑antireflux surgery.
• Gastric emptying and/or electrogastrography results when considering antroduodenal manometry.
• Clinical history and severity, including duration of symptoms.
• Documentation of trials of conservative/medical therapies and responses (see Trial of Conservative Therapies callout).
• Specific test protocol (eg, duration of colonic manometry, provocation maneuvers).

Trial of Conservative Therapies Before Invasive Testing

A trial of conservative therapies is required before invasive motility testing such as antroduodenal manometry in many indications. Document specific empiric therapeutic trials and their duration and response.

• Document trials of antiemetic and/or prokinetic agents for nausea/vomiting.
• Document conservative management for constipation or defecatory disorders, including biofeedback and pharmacologic therapies.
• Record duration and lack of adequate response to conservative measures.

Placeholder Provider Action (Not Specified)

No additional provider action specified in this document beyond the requirements above; follow payer instructions for submission and contact the plan for questions.

• If uncertain, contact Aetna for clarification or prior authorization support.