ILOS - Residential Services for Individuals with Complex Needs (Residential Level III) for Children with IDD and Co-occurring Mental Health Diagnoses
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Defines medical necessity, admission/continued stay/discharge criteria, provider and documentation requirements, and utilization management for short-term Residential Level III group home services for Medicaid members ages 5–21 with intellectual/developmental disabilities (IDD) and co-occurring mental health (MH) conditions.
No material clinical or coverage changes in this revision.
Coverage and Medical Necessity Criteria
inv-01: Medical Necessity: Admission, Continued Stay, Discharge
Covered when ALL of the following are met:
Admission requires documentation listed under authorization and psychiatric assessment by child/adolescent psychiatrist or qualified MD/DO.
Reauthorization up to 60 days; service duration targets approximately 120 days.
Discharge plan must be discussed and documented from admission.
For Medicaid beneficiaries under age 21, Early and Periodic Screening, Diagnostic and Treatment (EPSDT) requires coverage of services that are medically necessary to correct or ameliorate a condition identified through screening or evaluation. However, EPSDT does not require coverage for services that are unsafe, ineffective, experimental, investigational, or not medical in nature or not generally recognized as accepted medical practice.
Residential placement is considered when the Comprehensive Clinical Assessment (CCA) documents that home or office-based therapies have been ineffective or are inappropriate and the member requires 24/7 supervised residential care. Admission requires that the member meet age and diagnostic criteria (ages 5–21 with IDD plus a co-occurring mental health condition, or mental health diagnosis with borderline intellectual functioning), demonstrate moderate to severe behaviors across at least two major life areas, and have an active crisis plan and Person-Centered Plan with measurable goals and transition planning.
If the CCA indicates that less intensive services (for example, home- or office-based therapies) are effective or appropriate for the member, residential services would be considered not medically necessary and authorization may be denied. Residential care is intended as a step-up when documented attempts at less restrictive interventions have failed or are clinically inappropriate.
Billing Codes and Rates
| H0018 HA | Service Description ILOS - Residential Services for Individuals with Complex Needs for Children with IDD and co-occurring MH Diagnosis; Daily/per diem |
Provider Requirements, Authorization, and Documentation
Prior authorization required from day 1; initial 60 days, reauthorization up to 60 days
Authorization is required from day 1 for an initial period of up to 60 days; reauthorization may be granted for up to an additional 60 days. Prior approval is required even for beneficiaries under 21 (EPSDT does not waive prior approval).
- Submit a complete Service Authorization Request (SAR) to initiate authorization.
- Initial authorization covers up to 60 days; submit documentation for reauthorization to request up to an additional 60 days.
Admissions and concurrent stays subject to UM and HBCT care management
Admissions and concurrent stays are subject to Healthy Blue Care Together Utilization Management and Review processes; providers must participate in HBCT care management and maintenance of the individual's care plan.
- HBCT will monitor admissions and concurrent stays through Utilization Management and Review.
- HBCT network management will monitor individuals receiving Residential-complex needs at least annually.
Authorize residential care only after less intensive services proved ineffective/inappropriate
Residential placement is authorized only when the Comprehensive Clinical Assessment documents that home or office-based therapies have been ineffective or are inappropriate and the member requires 24/7 supervised residential care.
- CCA must indicate less intensive services are inadequate as a condition of medical necessity for residential care.
- Member must demonstrate moderate to severe behaviors across at least two major life areas requiring intensive interventions.
File SAR with CCA, crisis plan, PCP and signed service order at admission
Submit a complete Service Authorization Request (SAR) and ensure the Comprehensive Clinical Assessment (CCA) documents the need for structured residential treatment with an active crisis/safety plan and Person-Centered/Care Plan from admission.
- Include service order signed by a qualified provider and contemporaneous service notes as required by RMDM 45-2.
- Document discharge planning and transition activities from admission in the service record.
Required documentation for authorization and claims (SAR, CCA with crisis/safety plan, reauthorization docs)
Providers must submit a complete SAR, a CCA including a crisis/safety plan, a recent psychological evaluation with intellectual and adaptive behavior assessments, and a Person-Centered/Care Plan with measurable goals and discharge planning; reauthorization requires updated SAR, PCP, CCA and required assessments plus service notes per RMDM 45-2.
- Assessments within first 30 days must include CALS, functional behavior and preference assessments.
- For reauthorization, provide recent CALS, functional behavior and preference assessments and all completed assessments; include updated crisis and discharge plans.
Participate in HBCT care management and maintain care plan; HBCT will monitor
Providers must participate in Healthy Blue Care Together care management and maintain the individual's care plan; HBCT care management will monitor progress, quality of service, and the care plan as outlined in the HBCT Care Management Program.
- HBCT care management will monitor the individual's progress in service and the quality of care.
- Network management will perform at least annual compliance monitoring for individuals receiving Residential-complex needs.
Medical necessity not demonstrated — risk of denial when CCA supports less intensive care
If the CCA does not indicate that residential care is necessary or demonstrates that home or office‑based therapies are effective, residential authorization may be denied because medical necessity is not demonstrated.
- Lack of evidence that less intensive services were ineffective or inappropriate risks non-authorization.
- Admission requires documentation listed under authorization and psychiatric assessment by a qualified clinician.
Monitoring and UM noncompliance may affect authorization
Failure to meet Utilization Management/Review processes or care management monitoring expectations may trigger adverse actions; admissions and concurrent stays are actively monitored and noncompliance can affect authorization status.
- Ongoing monitoring includes complaints, incident reports, quality of care reviews, and audits, which may occur annually or as needed.
- Noncompliance with monitoring or care management requirements may result in adverse actions affecting authorization.
Residential Level of Care Requirements
inv-16: Residential (Level III) / Small group home
inv-17: Residential — Additional residential criteria grouping
Required Treatment and Program Components
inv-18: Residential multidisciplinary treatment
Concurrent Services and Visit Limitations
Defined Terms
Background and Program Description
Residential Services for Individuals with Complex Needs provide short-term, multidisciplinary residential treatment in a Residential Level III small group home for children and young adults with intellectual and developmental disabilities (IDD) and co-occurring mental health (MH) conditions. The program is designed for eligible candidates ages 5–21 who present with complex clinical needs—high-level behavioral challenges requiring staff trained to manage IDD, MH issues, and severe behaviors—and who have demonstrated that less intensive community-based services are inadequate.
The scope of the program emphasizes individualized behavioral plans, family and caregiver engagement, trauma-informed care, coordination with schools and other community providers, psychiatric assessment and access to prescribing clinicians, and active discharge and transition planning aimed at returning the individual to a less restrictive setting—typically within approximately six months when clinically appropriate.
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