Summary & Overview
HCPCS Level II A4929: Tourniquet for Dialysis, Each
HCPCS Level II code A4929 identifies a tourniquet used for dialysis vascular access. Nationally, durable medical supplies and procedure-related accessories such as dialysis tourniquets are essential components of outpatient hemodialysis delivery and itemized on claims to support supply utilization and payment. This code matters because accurate supply coding affects clinical supply management, billing transparency, and payment integrity across dialysis providers and payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what A4929 represents, the typical clinical context and site of service, and the types of benchmarks and policy issues that commonly accompany supply-level HCPCS coding. The publication summarizes common billing practices, typical modifier usage patterns, and payer coverage considerations where available. It also highlights where input data was not provided and which elements require payer-specific policy review. This national-level summary is intended to orient billing, compliance, and clinical staff to the role of A4929 in dialysis claims and where to look next for payer-specific rules and reimbursement guidance.
Billing Code Overview
HCPCS Level II code A4929 describes a tourniquet for dialysis, each. This item is a single-use or reusable device used to occlude blood flow during hemodialysis vascular access procedures.
Service type: Dialysis supply
Typical site of service: Dialysis clinic or outpatient dialysis center
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with end-stage renal disease receiving maintenance hemodialysis in an outpatient dialysis center. A dialysis nurse prepares the patient for vascular access cannulation by applying a single-use tourniquet to the selected arm or leg access site to engorge veins and facilitate needle insertion for dialysis. The tourniquet A4929 is used during routine dialysis sessions, vascular access assessment, or during difficult cannulation when additional venous compression is needed. The workflow includes verification of patient identity, assessment of the access site (fistula, graft, or catheter), hand hygiene and personal protective equipment, application of the tourniquet, cannulation with dialysis needles or catheter access, and documentation of the device lot number and use in the dialysis treatment record. Typical site of service is an outpatient dialysis center, hospital outpatient department, or home dialysis setting when supplies are provided for self-care or caregiver use.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Use when no modifier is required; standard reporting. |
52 |