HCPCS Level II code E1590 denotes a hemodialysis machine — durable medical equipment used for extracorporeal blood purification in patients requiring renal replacement therapy. This code is important nationally because it identifies capital medical equipment billed or reported in settings that deliver dialysis care, with implications for facility operations, supply chain, and billing compliance.

Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code and its clinical context, an overview of typical sites of service (outpatient dialysis centers, hospital dialysis units, and home hemodialysis), and guidance on the kinds of benchmarks and policy issues that commonly affect billing for durable medical equipment in dialysis — such as coverage policies, supplier enrollment, and documentation expectations. The publication also summarizes common modifiers and payer variation where available and flags areas where data was not provided.

The piece equips billing managers, compliance officers, and clinical program leaders with a clear reference for what E1590 represents and what to expect when this code appears on claims or equipment inventories. Data not available in the input is noted where applicable.