Summary & Overview
HCPCS A4545: Supplies for External Tibial Nerve Stimulator, 1 Month
HCPCS Level II code A4545 denotes one month’s worth of supplies and accessories for an external tibial nerve stimulator, including items such as socks, gel pads and electrodes. This code identifies consumable components required to deliver percutaneous or transcutaneous tibial nerve stimulation for neuromodulation of the lower limb, commonly used in treating bladder dysfunction and pelvic floor disorders. Accurate coding of these supplies affects billing clarity, claims processing, and access to consistent patient supplies nationwide.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise overview of the code’s clinical role and typical sites of service, plus guidance on what to expect in payer coverage patterns and common billing practices. The publication outlines benchmarking considerations for supply utilization, notes where policy updates typically appear for HCPCS supply codes, and situates the code within the broader service line of neuromodulation and DME-supplies billing.
Data not available in the input for associated taxonomies, specific ICD-10 pairings, detailed payer fee schedules, and related procedure codes are noted where relevant.
Billing Code Overview
HCPCS Level II code A4545 represents supplies and accessories for an external tibial nerve stimulator intended to support one month of therapy (for example, socks, gel pads, electrodes and similar disposable or short-term items).
Service Type: Durable medical equipment supplies and accessories for neuromodulation therapy
Typical Site of Service: Outpatient clinic, home health or durable medical equipment (DME) supplier settings where external tibial nerve stimulation is provided or managed
Clinical & Coding Specifications
Clinical Context
A typical patient is a 55-year-old adult with refractory overactive bladder or urgency urinary incontinence who has undergone percutaneous tibial nerve stimulation (PTNS) or is using a transcutaneous/external tibial nerve stimulation device at home. The clinician (urologist, urogynecologist, pelvic floor physical therapist, or neuromodulation-trained nurse) prescribes a reusable external tibial nerve stimulator with disposable monthly supplies such as conductive socks, gel pads, or electrodes. The patient obtains the monthly accessory kit to maintain skin contact, conductivity, and hygiene.
Clinical workflow: The clinician documents the diagnosis and the need for ongoing monthly replacement supplies in the patient’s chart during a follow-up visit or a device training session. The clinician issues an order or prescription referencing supplies for one month. The supplier or durable medical equipment provider dispenses the A4545 supply kit, records the prescription/order, and bills the payer. The patient uses the supplies at home with the external tibial nerve stimulator during scheduled treatment sessions, with return visits or remote monitoring as clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default/No modifier | Use when no specific modifier applies |