MMP 26-19: Additions to Standards of Coverage and Documentation Requirements for High Frequency Chest Wall Oscillation (HFCWO) Devices

By July 15, 2026: DME billing and clinical teams must implement the following changes: (1) Update supplier contracts and device specifications to ensure all HFCWO devices ordered include equipment usage meters (daily or cumulative hour capable); (2) Modify delivery documentation templates to capture device serial number, delivery date, and initial meter readings (photographs are acceptable); (3) Create a 4-month follow-up process to obtain and document end-date meter readings; (4) Establish ongoing meter documentation collection procedures for continuation of service beyond initial four months, including downloadable meter data where available; (5) Update prior authorization submission workflows to include all required meter documentation. Billing team must ensure all supporting documentation is retained in beneficiary files and immediately available upon request. For patients enrolled in Managed Care Organizations (MCOs), verify specific coverage and documentation requirements with each plan as MCOs may have differing standards. Failure to provide required documentation will result in claim denials and potential recoupment.