Summary & Overview
HCPCS Level II A4605: Tracheal Suction Catheter, Closed System
HCPCS Level II code A4605 designates a single tracheal suction catheter, closed system used for suctioning patients with artificial airways while maintaining a closed ventilator circuit. Nationally, closed suction catheters are important for infection control and continuous ventilator support across acute care, post-acute, and home settings. The code is relevant to hospitals, skilled nursing facilities, long-term acute care, and home health providers that manage mechanically ventilated patients.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical sites of service, followed by benchmarking information, common modifier usage patterns, and policy considerations affecting supply reimbursement and claim adjudication. The publication covers national reimbursement benchmarks where available, payer coverage patterns, and documentation expectations tied to use of closed suction systems. Practical value includes clarifying the supply’s role in care pathways for ventilated patients and summarizing payer approaches to billing and coverage for disposable closed suction catheters. Data not available in the input is identified explicitly in relevant sections.
Billing Code Overview
HCPCS Level II code A4605 describes a tracheal suction catheter, closed system, each. This item is a disposable component used to perform closed-system tracheal suctioning for patients with artificial airways, allowing suctioning without breaking the ventilator circuit.
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Service type: Respiratory therapy supply for airway clearance and secretion management
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Typical site of service: Hospital inpatient and outpatient settings, long-term acute care, skilled nursing facilities, and home ventilator care environments
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or pediatric inpatient with an indwelling endotracheal or tracheostomy tube who requires clearance of secretions to maintain airway patency and prevent atelectasis or ventilator-associated complications. A respiratory therapist or trained nurse performs closed-system tracheal suctioning at bedside in an acute care setting such as an intensive care unit, step-down unit, or during transport. The closed suction catheter device A4605 is used to suction secretions without disconnecting the ventilator circuit, preserving positive end-expiratory pressure and reducing aerosolization risk. The workflow includes assessment of respiratory status, indication documentation (e.g., increased secretions, decreased oxygenation, ventilator alarms), preparation of equipment and personal protective equipment, performance of suctioning with appropriate technique and duration, monitoring of vital signs and ventilator parameters during the procedure, and documentation of pre- and post-procedure findings and device utilization in the medical record.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Standard reporting when no other modifier applies |
22 |