Summary & Overview
HCPCS A4470: Gravlee Jet Washer for Institutional Cleaning
HCPCS Level II code A4470 identifies the Gravlee jet washer, an institutional-grade powered washer used for large-scale cleaning and flushing tasks in sterile processing and maintenance areas. This equipment-focused code matters nationally because it supports infection control workflows and capital supply reporting across hospitals, surgical centers, and large clinics.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code's clinical and operational role, payer coverage considerations, and what to expect in billing practice for device and equipment supply line items. The publication covers benchmarking areas such as typical reimbursement treatment for similar HCPCS Level II durable medical equipment and institutional supply codes, common documentation elements required for payer adjudication, and the clinical context in which a Gravlee jet washer is deployed.
The analysis is national in scope and geared toward revenue cycle leaders, sterile processing managers, and compliance officers. It explains the service line placement for equipment provision, typical sites of use, and the administrative information needed for accurate claim submissions. Data not available in the input for specific modifiers, taxonomies, and ICD-10 pairings is noted where applicable.
Billing Code Overview
HCPCS Level II code A4470 describes a Gravlee jet washer, a powered device used for high-volume cleaning or flushing tasks in clinical and institutional settings. The service type for this code is equipment/device provision. The typical site of service is hospital central sterile supply, clinic sterile processing, or other institutional maintenance areas where large-capacity washing or decontamination equipment is required.
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Clinical & Coding Specifications
Clinical Context
A Gravlee jet washer is durable medical equipment used in sterile processing departments for cleaning and flushing surgical instruments and complex lumened devices prior to sterilization. A typical patient-related scenario involves an ambulatory surgery center or hospital central sterile processing unit receiving used surgical trays from an orthopedic or general surgery case. Instruments with blood, tissue, and lubricant residues are placed into the Gravlee jet washer for automated high-pressure flushing and detergent immersion to remove bioburden before inspection, lubrication, and sterilization.
The clinical workflow starts when surgical staff transport contaminated instrument sets to central sterilization. Sterile processing technicians sort and assemble instruments on trays, select the appropriate wash cycle on the Gravlee jet washer, secure tray inserts and connectors, and run the automated cleaning cycle. After completion, technicians inspect instruments under magnification, perform manual cleaning of crevices if needed, apply instrument lubricant, package trays, and place them into the sterilizer. Documentation of washer cycle parameters and maintenance is recorded in the sterile processing log for traceability and compliance with facility policies and accrediting bodies.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard billing | Use for routine supply billing when no special circumstances apply. |