Minnesota Adult Day Providers: Why a Paid UCare MSC+ Claim Can Be Reversed After a Retroactive MSHO Enrollment — and How to Rebill Medica

A Minnesota adult day center can do everything right this year — verify eligibility, get the Elderly Waiver authorization, bill the correct plan, get paid — and still watch that payment come back off a remittance advice months later. Medica's provider guidance for Minnesota Senior Health Options, updated in September 2026, explains why: a high volume of seniors who were auto-enrolled in UCare's Minnesota Senior Care Plus plan on January 1, 2026 have since been approved for Medica's MSHO plan with an effective date that reaches back to their application date. When that happens, the MSC+ enrollment is voided for the overlap, the claims paid under it are reversed, and the provider has to bill Medica for the same days. This is an eligibility and payer-routing event, not a documentation problem, and it has a defined sequence.

ElderSuite serves adult day care centers nationwide. This piece is Minnesota-specific — Adult Day Services and Adult Day Services Bath under the Elderly Waiver for members moving between UCare Community Health Plan MSC+ and Medica DUAL Solution (MSHO).

How the overlap happened

UCare ended its dual-eligible special needs plans at the close of 2025. Medica's UCare provider hub explains that a transition of those D-SNP members to Medica "was not allowed to move forward" because of regulatory constraints and a mismatched service area, so UCare MSHO members who did not pick a new plan "defaulted to UCare's Minnesota Senior Care Plus (MSC+) plan for 2026," with Original Medicare for Parts A and B and a CMS-assigned Part D plan.

Many of those members then applied for Medica's MSHO plan. MSHO is the voluntary Minnesota program that, in the Department of Human Services' words, "combines Medical Assistance and Medicare health care programs and support systems into one package," with an assigned care coordinator; it is open to people 65 and older who are eligible for Medical Assistance, enrolled in Medicare Parts A and B, and living in a county where a plan offers MSHO. DHS received what Medica calls "an unprecedented number" of MSHO applications, and processing slowed for every plan. Medica's MSHO page states the consequence plainly: "Once DHS completes the review, the member's coverage start date will still be based on the date their application was submitted, even if DHS approves it later." In the meantime the member stays covered under MSC+, MN-ITS shows MSC+, and providers keep billing MSC+ — correctly.

What happens to the claims you already billed

Medica's provider FAQ describes the mechanics. Members "may have incurred claims prior to their application being approved, which generated claims submission and payment under their prior plan (e.g., UCHP MSC+)." Once the application is approved, "claims submitted after the effective date of plan eligibility but prior to the application being approved will be reversed," and "providers must re-submit claims to the primary payer under MSHO payment rules to receive payment for any claims after the MSHO effective date."

The original payment does not survive. Asked whether a provider can keep it, Medica answers: "No, payments made during the applicable period prior to eligibility being retroactively determined will be voided or recouped." Enrollment in UCHP's MSC+ plan is voided, and "existing processes to reverse claims go into place with reversals reported on the providers' remittance advice with messaging the member is not enrolled in the plan." That remittance line is your notice to rebill.

Reimbursement can change. Medica says rebilled claims "will follow MSHO payment rules," and "any variation from existing UCHP MSC+ and/or Medicare FFS rates will result in a change in reimbursement." Member cost sharing can change too. Medica pays claims twice weekly and "generally processes clean claims within 30 days of receipt."

Where the rebill goes

The rebill goes to Medica under payer ID 94265 — "through normal processes," in Medica's words. Medica's Claim Submission and Product Guidelines page lists, for that payer ID, the paper claims address (Medica, PO Box 30990, Salt Lake City, UT 84130-0990), Optum Intelligent EDI for electronic data interchange, Optum for EFT, and Availity Essentials as the secure provider portal under the dropdown "Medica (United HealthCare)." Medica's 2026 billing deck for Elderly Waiver providers adds that electronic claims "are accepted through clearinghouses, who then forward to Medica," that MSHO groups carry numbers beginning 07 and MSC+ groups 59, and that an atypical provider billing with a UMPI rather than an NPI must send it in a REF*G2 segment in loop 2010BB — putting the UMPI in loop 2010AA "can cause an error or rejection at the clearinghouse."

Verify the results the same way Medica tells you to: "Verify claim status responses using the Availity Essentials provider portal or via the EDI Gateway."

Two things carry over from the old plan, and one does not. Elderly Waiver authorizations issued under UCare are transferred: Medica says providers "do not need to re-submit a new authorization request," that it "is working directly with UCare to transfer these authorizations," and that each provider "will receive an authorization letter from Medica with the authorization date backdated to the member's MSHO effective date through the end of the established authorization period." Timely filing is extended for medical claims — "an exception to our current timely filing original submission requirements for this population by an additional six months," for 2026 dates of service only. Medical prior authorizations do not carry over: an MSC+ authorization "applies only to coverage through the MSC+ plan," and services that need one under Medica's rules need a new request.

Do not rebill an Elderly Waiver day before the transferred authorization exists. Medica is explicit that "there may be a delay between a member's MSHO effective date and when the authorization is entered into Medica's system," that providers "should continue to deliver authorized EW services," and that "once the authorization is entered, it will be backdated to cover the member's MSHO effective date, provider letters will be issued, and claims can be submitted at that time."

The adult day codes involved

Under Medica's MSHO and MSC+ plans, Adult Day Services and Adult Day Services Bath are Elderly Waiver benefits that require authorization from the member's care coordinator. Medica's benefit guideline for the two services lists both as "Not Covered unless on Waiver," requires that the need be identified in the care plan, and notes that the bath "must also be receiving ADC services" and needs a documented reason the bath cannot occur at home. Transportation is not in the adult day rate: "The cost of transportation is not included in the elderly waiver rate paid to providers of Adult Day Services."

Medica's referral guidelines carry the codes as S5100 for Adult Day Services (in person and virtual) and S5100 TF for Adult Day Services Bath, both billed per 15-minute unit. DHS's service rate limits effective April 1, 2026 set the Elderly Waiver ceiling at $4.53 per unit for Adult Day Services and $11.58 per unit for the bath, with S5100 U4 for remote adult day and S5100 U7 for family adult day services. A rate limit is a ceiling, not your contracted rate.

Keep this separate from October 1

The retro-enrollment reversals are not the UCare Medicaid transition. Effective October 1, 2026, the Medicaid membership UCare administers moves to Medica under the plan name "Medica One Health Plan," and Medica's August 2026 Connections newsletter lists the plans that will run under payer ID 71890 from that date: Special Needs BasicCare, Minnesota Senior Care Plus, Prepaid Medical Assistance Plan, and MinnesotaCare. The provider hub states it directly: "Existing Medica Payer ID: 71890 will replace UCare payer ID 55413." New ID cards arrive in September 2026, and until a member's first October visit the UCare card stays in use.

MSHO members are not part of that migration. Medica's August clarification says the October and January transition information "does not apply to those participating in Medica's Minnesota Senior Health Options (MSHO) product," and that once an application is approved, "claims for our MSHO members should be submitted under Medica payer ID 94265." So a Minnesota center can be billing three payer IDs for the same senior population in one year — UCare 55413 for MSC+ days before a member's MSHO effective date, Medica 94265 for MSHO days, and Medica 71890 for members who stay on MSC+ from October 1.

The sequence for your billing office

1. Check MN-ITS every month, every member. Medica says providers "continue to follow standard monthly eligibility verification in MN–ITS for all members, ongoing." A product change and a backdated effective date show up there before the reversal shows up on a remittance.
2. Read every remittance advice for reversal lines that say the member is not enrolled. Match each reversed date of service to the member's MSHO effective date; days on or after it are Medica's.
3. Wait for Medica's authorization letter for the transferred EW authorization, then bill only the units and dates it covers.
4. Rebill Medica as original claims under payer ID 94265, the ID printed on the member's Medica card, and confirm status in Availity Essentials or through your EDI reports.
5. Track the timely-filing clock — the six-month extension applies to 2026 dates of service, and Medica asks that claims be submitted "as quickly as possible to avoid delays in payment."
6. Reconcile the reversal and the rebill separately so the recoupment and the new payment do not net into a single unexplained adjustment in your books.

If you bill from ElderSuite, the rebill is the normal workflow: set up a Medica payment type with payer ID 94265 under Manage Payment Types, move the affected clients to it in Claim Setup, set the reversed claims back to Pending, scrub, and process them through your Availity connection as original claims.

Reversed statuses and rebilled claims are exactly what Auto Reconcile and the claim-denial workflow in ElderSuite's claim denials guide are built to keep straight: the original MSC+ claim keeps its history, and the Medica rebill is built from the same attendance records.

Where to check

• Medica's MSHO page on the UCare provider hub — provider FAQs and Elderly Waiver FAQs on retro-enrolled members
• Medica's Claim Submission and Product Guidelines — payer ID 94265 (MSHO and MSC+ under Medica) and payer ID 71890 (Medica One Health Plan from October 1)
• Medica's Care Coordination Resources for MSHO — Elderly Waiver benefit guidelines, including Adult Day Services and Adult Day Services Bath
• DHS's Minnesota Senior Health Options consumer page and DHS-3945 service rate limits
• Medica Provider Service Center: 1-800-458-5512, Monday–Friday 7 a.m. to 5 p.m. Central