How Missouri Medicaid Pays for Adult Day Care: Two Waivers, a 15-Minute Unit Frozen at $3.32 Since 2023, and the Records DSDS Requires

Missouri licenses 164 adult day care programs with 5,366 slots — nearly three-quarters of them in the St. Louis metro — and MO HealthNet pays them through two waivers, fee-for-service, in 15-minute units. The unit pays $3.32. It paid $3.32 in July 2023, it paid $3.32 when the FY2026 rate bulletin raised other home- and community-based rates, and it paid $3.32 again on July 1, 2026, when the FY2027 bulletin gave home-delivered meals a 64 percent increase. Here is how the benefit is built, who authorizes it, and what the state expects in your files for every unit you bill.

ElderSuite serves adult day care centers nationwide. This piece is Missouri-specific — adult day care under the Aged and Disabled Waiver and the Adult Day Care Waiver for seniors and adults with physical disabilities, not Department of Mental Health day habilitation.

Two waivers, one service

The Aged and Disabled Waiver, MO.0026, covers adults 65 and older and adults with physical disabilities who are 63 or 64; its current five-year term runs July 1, 2023 through June 30, 2028, and an amendment approved effective July 1, 2026 tightened respite without touching adult day care. The Adult Day Care Waiver, MO.1021, covers adults 18 through 63 with disabilities; its term began July 1, 2025. The service is the same in both, and MO HealthNet publishes a provider manual for each, both dated April 8, 2026.

The waiver defines adult day care as “the continuous care and supervision of aged and/or disabled adult in a licensed adult day care (ADC) program in a non-institutional setting,” including “assistance with activities of daily living, planned group activities, food services, participant observation, and transportation.” Transportation is part of the service, not a separate code: “the provider must arrange or provide transportation to the ADC setting at no cost to the participant,” and up to 120 minutes a day of it is reimbursable inside the daily units. Meals are included but do not constitute a full nutritional regimen. Both waivers are fee-for-service — the Aged and Disabled Waiver manual says its services “are not included as a plan benefit of the MO HealthNet Managed Care Health Plans,” and managed care in Missouri covers children, pregnant women, families, and adults 19 to 64, with disabled adults routed to fee-for-service coverage.

Units, caps, and the cost maximum

Adult day care is billed under S5100 with modifier HC (Aged and Disabled Waiver) or HB (Adult Day Care Waiver), in 15-minute units. The manual’s arithmetic: “Authorization for services should not exceed 40 units or 10 hours per day with a maximum of five (5) days per week,” of which no more than “eight (8) units or two (2) hours” may be transportation. A unit “includes time spent completing documentation” but not “travel, lunch, breaks, or administrative activities.” Partial units accrue: a participant who attends 100 minutes one day and 130 the next is billed six units the first day and nine the second.

Two ceilings sit above the daily cap. The DHSS HCBS Policy Manual sets a monthly maximum of 920 units for adult day care under either waiver. And adult day care “in conjunction with other Aged and Disabled Waiver services and State Plan Personal Care program may not exceed 100% of the average monthly nursing facility cost of care” — a figure the state resets every July 1. As of July 1, 2026 it is $5,593.32 a month. State-plan personal care, by contrast, is capped at 60 percent of that figure, $3,355.99.

The rate: $3.32 and holding

The MO HealthNet fee schedule pays S5100 HC at $3.32 per unit, effective July 1, 2023 — $13.28 an hour, $132.80 for a full 40-unit day, $3,054.40 for a 920-unit month. The rate reached that level in steps the bulletins record: $2.32 in July 2021, $3.12 by mid-2023, and $3.32 on July 1, 2023, when the Department said it expected “a substantial portion of the rate increase” to be passed through to direct care workers. Since then, nothing. The FY2026 bulletin of July 2025 changed home-delivered meals and structured family caregiving; the FY2027 bulletin of July 21, 2026 raised home-delivered meals from $6.71 to $10.99 and structured family caregiving from $103.80 to $110.33. Adult day care appears in neither.

The freeze has a context. Under the waiver, rates are “subject to and determined by the State Legislature” through the annual appropriation, historically keyed to the state minimum wage, Midwest gasoline prices, the hourly waiver rate, and the Consumer Price Index. The Department’s own Mercer workforce survey found the average direct support worker wage rose 23 percent, from $11.71 to $14.40 an hour, over three years — and noted that the adult day care rate, unlike every other rate in its table, “assumes the service is delivered in a group setting.” A 15-minute unit at $3.32 has to cover a share of a nurse, an aide, a meal, and a van.

Who qualifies, and who authorizes

Aged and Disabled Waiver eligibility requires age 65 or older, or 63 or 64 with a physical disability; active Medicaid; and nursing facility level of care, assessed by the Division of Senior and Disability Services with the interRAI Home Care instrument — 18 points or more under the DHSS policy manual. Residents of nursing facilities, residential care facilities, and assisted living facilities are not eligible for adult day care.

DSDS authorizes every unit. Since May 5, 2025 the authorization lives in HCBS Fusion, the state’s electronic case record: the provider finds a posted prior authorization with its number, the services authorized, the period covered, and the total monthly units and tasks. The authorization cannot start before the assessment was completed and cannot run past the last full month within 365 days of it; the provider must begin service within ten calendar days of the plan’s authorization; and the provider is responsible for verifying MO HealthNet eligibility on every date of service. As the manual puts it, “the prior authorization merely establishes the maximum number of hours and types of services which may be delivered” — the claim must rest on documentation of what was actually delivered.

The July 2026 amendment matters here even though it does not mention adult day care. It caps basic and advanced respite at 49 hours a week, and DSDS told providers it would begin adjusting affected care plans on September 1, 2026. Families who lose in-home respite hours are the people adult day care exists for.

Licensed by DHSS, inspected unannounced

Missouri licenses adult day care under RSMo 192.2200, which defines the program as “care and supervision to meet the needs of functionally impaired adults for periods of less than twenty-four hours but more than two hours per day in a place other than the adult’s own home.” A license is required at five or more unrelated participants; programs serving four or fewer, or offering two hours or less a day, are exempt. The license runs no more than two years, the fee is $25 to $100 by capacity, and the Department “shall make at least one inspection per year, which shall be unannounced.”

The operating rules at 19 CSR 30-90 have not been amended since 2005. Staffing: the director or a designee present whenever participants are; “at least two (2) direct care staff persons when two through sixteen (2–16) participants are present and one (1) additional direct care staff person for any portion of eight (8) additional participants”; trained volunteers 18 and older may count toward the ratio; at least one staff member certified in first aid and CPR on the premises at all times. A physician’s medical assessment is required before the first day, a plan of care within five contact days and reviewed every six months, and health, functional, and psychosocial status observed and documented at least monthly. Medications may be administered only on a signed physician order, and the licensed nurse is the only person authorized to receive, control, and manage the medication program. Physical plant: 80 square feet per participant for the first twenty, temperature between 68 and 85 degrees, a toilet and sink for every ten, and two exits remote from each other.

Billing: fee-for-service, 12 months, no EVV

Enrollment runs through the Missouri Medicaid Audit and Compliance unit and requires, among other documents, the DHSS license, a Type 2 NPI, a current No Tax Due letter, and the HCBS settings self-assessment, plus a $750 application fee for institutional providers. Claims go to MO HealthNet on the professional claim format with place-of-service code 99, up to 40 units per date of service on a single detail line, and must be received within 12 months of the date of service. Each paid claim reduces the units remaining on the authorization; nothing above the authorized units is paid.

Electronic claims go out as 837P files, and Missouri Medicaid (payer ID 70029) is an available payer on the Availity clearinghouse — the same clearinghouse ElderSuite submits claims through. That means a Missouri center can run the whole pipeline in one system: daily attendance becomes service documentation, documentation becomes claims, and claims go out electronically. Availity requires a one-time payer enrollment before the first claim goes out. For the full workflow from attendance record to electronic claim, see ElderSuite’s Medicaid billing guide.

One thing you do not need: electronic visit verification. Missouri’s EVV rule, 13 CSR 70-3.320, lists the services it does not apply to, and adult day care is first on the list. The claims-validation phase of EVV that began denying non-compliant personal care claims on April 1, 2026 does not reach you.

The records DSDS requires

The Aged and Disabled Waiver manual is unusually specific about adult day care documentation. Providers may design their own logs, but every paid unit must be supported by, at a minimum: the date of service; “actual start clock time of when the participant arrives at the facility”; “end clock time of when the participant leaves the facility”; the actual start and stop time of transporting the participant to and from the facility; the address the participant was picked up from and returned to; the name of the worker providing the transportation; the name of the facility; and the participant’s name and DCN. Those records — with everything else used to bill — are kept six years; the licensing rule separately requires a daily attendance log for the previous calendar year, a medication chart, the plan of care and progress notes, and accident and incident documentation, retained five years.

MMAC conducts program and fiscal monitoring, announced or unannounced, and the licensing rule requires Family Care Safety Registry screenings of staff every 90 days. Because the unit is fifteen minutes and transportation is inside it, arrival and departure times are the whole claim. Your attendance tracking is the first document a reviewer will open.

Where to check

• The MO HealthNet Aged and Disabled Waiver and Adult Day Care Waiver provider manuals, and the fee schedules
• The DHSS HCBS Policy Manual (cost maximums, unit limits, level of care) and the HCBS Fusion page
• DHSS’s adult day care licensing page and 19 CSR 30-90
• MMAC adult day care enrollment and MO HealthNet provider bulletins