← the access Reviewed as of 15 July 2026
THE ACCESS · HOW DOES THE MONEY MOVE?

The Coverage Map

Who pays for a dialysis treatment, and when: the payer stack with its 30-month coordination clock, the single base rate and everything consolidated inside it, the temporary side doors new technology enters through—and the annual rule machine that reprices the whole thing every January 1.

TEXT ALTERNATIVE ↓
WIDE DRAWING · SCROLL SIDEWAYS TO READ IT ALL · THE FULL CONTENT IS ALSO IN WORDS BELOW
An institution or a status
The rule machine—CMS’s annual rulemaking cycle
The pipe—how the money moves
Elective or temporary—an election, or an add-on outside the base rate
Reviewed as of 15 July 2026 Changelog

The drawing in words

  1. Region 1—the payer stack: who is primary, and when. It begins at ESRD diagnosis, dialysis initiated, and runs into the Medicare waiting period (about three months). [1]
  2. The waiting period is waived if home dialysis training begins before month 3. Home training is a coverage accelerant. [1]
  3. The decision: is an employer group health plan in place? If yes, the commercial plan is PRIMARY, and a 30-month coordination period runs with Medicare secondary. At month 31, Medicare flips to PRIMARY and Part B pays 80 percent of the allowed amount. [2 · 3]
  4. If there is no employer plan and the person is Medicare-eligible: Medicare is PRIMARY from eligibility. If there is no coverage at all: uninsured at start, then emergency Medicaid, charity care, or retroactive enrollment—and once enrolled, Medicare primary. [1]
  5. From either path, a person may elect Medicare Advantage, open to ESRD patients since 2021 under the 21st Century Cures Act. [4]
  6. The pressure point: THE 20 PERCENT QUESTION—who covers the coinsurance? It resolves three ways: Medigap (under-65 access varies by state—an equity fault line), Medicaid as a dual-eligible, or patient exposure. [3 · 5]
  7. Economic asymmetry: commercial pays multiples of the Medicare bundle. The 30-month coordination patient is the facility’s margin engine. Facility economics = payer mix, not volume. [6 · VIA SECONDARY SOURCE]
  8. Region 2—the bundle: a single ESRD PPS base rate, per treatment. [3 · 7]
  9. Consolidated inside the bundle: the dialysis treatment and equipment, ESAs and renal drugs, labs, supplies, and oral-only phosphate binders (entering via TDAPA, 2025-2026). [8 · 9]
  10. Adjusters applied per claim: case-mix, wage index, low-volume and rural, non-contiguous NAPA (new for CY2026), outlier, and the home training add-on. [7]
  11. Side door: TDAPA—new renal drugs and biologics, a 2-year add-on outside the base rate, then a post-TDAPA add-on for 3 more years. Then the payment cliff: the base rate is NOT modified for existing-category drugs. [8 · 10]
  12. Side door: TPNIES—new equipment and supplies, 65 percent of the MAC-set price, for 2 years. In CY2026: zero approved items. [9 · 11 · 12]
  13. The lag thesis as payment policy: innovation enters through temporary side doors, then the add-on expires without the base rate moving. New technology must survive on bundle economics designed before it existed. [8 · 11]
  14. Region 3—the rule machine: a proposed rule around June-July, a 60-day comment period, a final rule around October-November, then a five-to-six-week runway to effective January 1—and the next cycle drafts from there. [7]
  15. The CY2026 verified cycle: proposed July 2, 2025; comments closed August 29, 2025; final rule November 24, 2025; effective January 1, 2026. [7]
  16. Across the regions: once Medicare is primary it pays per treatment through the base rate. Medicare Advantage pays on plan terms, benchmarked to the PPS. The rule machine reprices the base rate annually. And the ESRD QIP score applies up to a minus 2 percent reduction, on performance from TWO YEARS PRIOR. [3 · 7 · 13 · 14]

BRACKETED NUMBERS TRACE EACH LINE TO THE SOURCE LIST BELOW · EVERY SOURCE IS HELD IN THE REFERENCES LEDGER WITH ITS LOCATOR, ITS LAST-CHECKED DATE, AND HOW IT WAS VERIFIED