Revenue leak
Suppressed case-mix rate
Root cause
Late or under-coded MDS acuity
How 247MBS closes it
Assessment-linked pre-bill triple-check
Skilled Nursing billing · Washington
Skilled nursing billing services in Washington run on a case-mix engine most states do not use the same way: Apple Health (Washington Medicaid) pays nursing facilities through a case-mix-adjusted per-diem administered by DSHS Aging and Long-Term Support Administration (ALTSA), where the resident's MDS acuity directly moves the long-stay rate. 247 Medical Billing Services (247MBS) has run that institutional revenue cycle since 2005, and in a state that spans the dense Puget Sound corridor and the wide rural east, the buildings that protect their margin are the ones that treat MDS accuracy and participation calculations as revenue tasks, not paperwork. Every Washington SNF we serve gets a dedicated account manager, a free 360° reporting dashboard, and HIPAA plus SOC 2 Type II security.
We bill for the full range of Washington skilled nursing operators — freestanding for-profit buildings across the Seattle-Tacoma metro, non-profit and faith-based nursing homes, hospital-based SNF units tied to systems like UW Medicine, MultiCare, and Providence, short-stay rehab-to-home facilities cycling census against Puget Sound's referral flow, and long-term custodial nursing homes carrying deep Apple Health participation obligations. We also support memory-care-heavy buildings, CCRCs and life-plan communities with SNF beds, county and municipal nursing facilities, multi-facility regional operators, and small rural SNFs in the eastern counties around Spokane and along the Columbia near Vancouver. Whether you run a single building in Tacoma or coordinate beds on both sides of the Cascades, our skilled nursing facility billing services in Washington scale to your census, payer mix, and MDS schedule without adding headcount to a business office that is already stretched thin.
Traditional Medicare Part A pays a per-diem built from the five case-mix components scored on the MDS, Apple Health pays a case-mix-adjusted nursing-facility per-diem net of the resident's participation, and any Medicare Advantage plan pays a negotiated rate under its own authorization rules. The table traces how a Washington skilled stay becomes a paid institutional claim.
| Payment driver | What sets it | Where it lands on the claim |
|---|---|---|
| Case-mix rate | PT, OT, SLP, Nursing & NTA from the 5-day MDS | HIPPS code on revenue code 0022 |
| Per-diem taper | Variable per-diem adjustment after day 20; NTA front-loaded | Bill type 21X on the UB-04/837I |
| Covered days | Qualifying 3-day inpatient stay; up to 100 days per benefit period | Days 1-20 in full, days 21-100 coinsurance |
| Apple Health long-stay | ALTSA case-mix-adjusted per-diem; resident participation | Per-diem net of the participation amount |
| MA managed stay | Prior authorization & continued-stay approval | Plan authorization number on the claim |
| SNF Part B | Residents off Part A or with days exhausted | Bill type 22X, therapy modifiers GP/GO/GN |
Washington's ALTSA case-mix methodology means the MDS is not just a Medicare document here — it is a Medicaid revenue document too, because the acuity captured on assessment feeds the state's long-stay rate. A building that scores its residents late or thin loses on both sides of the ledger at once. That makes assessment discipline the single highest-leverage habit in Washington SNF billing, and it is exactly where an overstretched in-house office falls behind. Geography then compounds the challenge. The Seattle-Tacoma corridor carries high labor costs, a payer mix increasingly tilted toward Medicare Advantage, and dense hospital referral relationships with UW Medicine, MultiCare, and CHI Franciscan feeding short-stay beds. Spokane anchors the east with Providence Sacred Heart and serves a wide inland catchment. Vancouver sits inside the Portland media market yet bills under Washington rules, a mismatch that trips up operators who assume Oregon coordination. 247MBS staffs Washington accounts to carry all of it — the Apple Health participation ledger, the case-mix-linked MDS calendar, the traditional Part A per-diem, and the MA authorization queue — as one coordinated workflow so no delivered day and no earned acuity point goes unbilled.
Because Washington ties the Medicaid long-stay rate to MDS-scored acuity, its leaks concentrate around assessment accuracy, participation, and managed-care authorization. An under-coded or late MDS quietly suppresses the case-mix rate for the whole quarter, not just one claim. A participation amount set wrong once distorts every Apple Health long-stay claim until someone reconciles it. On the skilled side, the Puget Sound corridor's heavy Medicare Advantage load turns missed prior authorizations and NOMNC-timing errors into recurring short-stay losses. And the universal SNF failures still apply — consolidated-billing confusion that denies a bundled service or leaves an excluded one unbilled, or a missing qualifying hospital stay.
Suppressed case-mix rate
Late or under-coded MDS acuity
Assessment-linked pre-bill triple-check
Wrong long-stay amount
Participation miscalculated
Monthly participation reconciliation
Denied MA stay
No prior authorization at admission
Authorization tracking from day one
Stranded custodial days
Apple Health eligibility never worked
Pending-to-approval eligibility workflow
Unbilled ancillary
Bundled versus excluded confusion
Coder-verified consolidated-billing map
Revenue review
A certified SNF billing specialist reviews your coding, unit counts, authorizations and aged A/R against the payers you actually bill in Washington — and puts a number on what your current process is leaving on the table.
A SNF specialist will reach out within one business day.
A SNF specialist will reach out within one business day.
The decision to outsource skilled nursing billing in Washington usually comes down to a hard question: can an in-house office really keep MDS acuity accurate and timely enough to hold the ALTSA case-mix rate, reconcile Apple Health participation every month, chase Puget Sound's Medicare Advantage authorizations, and still submit every Part A claim clean? For most operators the honest answer is no, and the money left behind is real. As a medical billing services company built for institutional long-term care, 247MBS runs the whole revenue cycle — eligibility and benefit verification, MDS and PDPM billing support, denial management, credentialing, and A/R recovery — under one accountable team. Our metrics hold up: a 99% first-pass clean-claim rate, up to 40% fewer denials, 90% of worked denials recovered, and days in A/R held under 25, backed by a 98% client retention rate across two decades of professional SNF work. We are not a general billing company learning case-mix on your dime; we are a billing services company that already knows how Apple Health, ALTSA, and Washington's coastal-versus-inland payer mix behave. See how our statewide footprint works on the Washington billing overview.
| Factor | Washington reality |
|---|---|
| Medicaid LTC model | Apple Health nursing-facility benefit administered by DSHS ALTSA |
| Long-stay payment | Case-mix-adjusted per-diem net of the resident's participation |
| Case-mix | MDS acuity drives the Medicaid rate as well as Medicare classification |
| Medicare Advantage | High and rising in the Seattle-Tacoma corridor |
| Metros served | Seattle, Spokane, Tacoma, Vancouver |
Medical billing for skilled nursing in Washington has to protect two rates from one document, because ALTSA lets MDS acuity move the Apple Health long-stay per-diem as well as the Medicare classification. 247MBS runs that full institutional revenue cycle for Evergreen State operators — keeping assessments accurate and timely, reconciling resident participation every month, working Apple Health eligibility to approval, and chasing Puget Sound's Medicare Advantage authorizations before they turn into denials. From the Seattle-Tacoma corridor to Spokane and cross-border Vancouver, we bill every delivered day and every earned acuity point under one accountable team. That discipline is why our clients hold a 99% first-pass clean-claim rate with days in A/R under 25. Request a revenue review and see where acuity is going unbilled.
Each city page covers the local payer mix, the practices we bill for there, and the denials we prevent.
These are the Washington markets we cover in depth. We bill SNF practices right across the state — tell us where you are and we will walk you through billing in your area.
Apple Health pays nursing facilities on an ALTSA case-mix-adjusted per-diem, so we keep MDS acuity accurate and timely to protect the rate, calculate resident participation precisely, bill the per-diem net of that participation, and coordinate dual-eligibles so Medicare pays skilled-primary while Medicaid covers coinsurance and room-and-board.
Yes. Vancouver sits in the Portland market but bills under Washington rules, so we apply Apple Health and ALTSA methodology correctly rather than defaulting to Oregon coordination that would generate denials.
Yes. MA penetration is high along Puget Sound, so we verify benefits at admission, secure prior authorization, track continued-stay reviews, manage NOMNC deadlines, and appeal downgrades so delivered skilled days convert into paid days.
We work to a 24-hour submission standard once documentation clears the pre-bill triple-check, so census, MDS, and eligibility are reconciled before the claim drops.
Whether you are a solo practice or a multi-site group, we bill Skilled Nursing across Washington under one dedicated account manager and a live dashboard — and treat every counted unit, authorization and appeal as recoverable revenue until it is safely paid.
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