Summary & Overview
HCPCS A4913: Miscellaneous Dialysis Supplies, NOS
HCPCS Level II code A4913 denotes miscellaneous dialysis supplies not otherwise specified and is used to bill supply items supporting dialysis treatments that lack a dedicated HCPCS descriptor. Nationally, this code matters because dialysis care relies on a broad range of disposables and ancillary supplies; when no specific supply code exists, A4913 provides a billing pathway that affects claims processing and reimbursement classification. Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn the clinical and billing context for A4913, including typical sites of service (dialysis centers and outpatient clinics), the role of the code in supply reporting, and common payer coverage considerations. The publication summarizes benchmarks and comparative coverage patterns across major payers, outlines common modifier usage and claims scenarios where A4913 is applied, and highlights policy or coding updates that influence supply coding choices. The piece also clarifies where input data is unavailable, signaling areas where payers or providers may need to consult specific payer policies or billing guides for definitive guidance.
Billing Code Overview
HCPCS Level II code A4913 covers miscellaneous dialysis supplies, not otherwise specified. This code represents supply items used in dialysis care that do not have a more specific HCPCS Level II code designation.
Service type: Dialysis supplies and ancillary materials
Typical site of service: Dialysis clinics, outpatient dialysis centers, and other ambulatory settings where dialysis is delivered
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A patient with end-stage renal disease receiving maintenance hemodialysis presents to an outpatient dialysis center for a routine treatment. During setup, the dialysis nurse identifies a miscellaneous consumable supply needed that is not described by a specific HCPCS supply code (for example, a specialized connector, an uncommon tubing adapter, or an off‑label single‑use accessory required to complete extracorporeal circuit assembly). The supply is supplied and used on‑site during the dialysis session. Documentation in the patient record includes the device description, clinical reason for use, date and time of use, patient name and medical record number, provider or facility supplying the item, and linkage to the dialysis encounter and related dialysis procedure notes. Billing staff report the item using HCPCS Level II code A4913 as a miscellaneous dialysis supply, with supporting documentation attached for medical necessity and cost. Typical workflows involve nursing inventory control, clinician approval for unusual items, pharmacy or supply chain verification if needed, and submission of a claim to the patient’s payor with appropriate modifiers when applicable.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the supply use required substantially greater resources or complexity than usual and documentation supports increased work or cost. |