Water Purification and Softening Systems Used in Conjunction with Home Dialysis

Medicare covers water purification systems (deionization or reverse osmosis) and related activated carbon filters when used with home peritoneal or hemodialysis to remove chemical contaminants and reduce bacteria. Water softening systems are generally excluded except when they are used solely to pretreat water entering an RO unit and coverage is supported by RO manufacturer inlet standards, water analysis showing inadequate source water, and documentation that the softener is used only for dialysis; spare deionization tanks and use of both deionization and RO in series are not covered.

"Water purification systems (for home peritoneal or home hemodialysis) are covered when they render water chemically free of heavy trace metals and organic contaminants and as free of bacteria as re..."

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