In 2023 in Cuyahoga County, 624 children benefited from IIC and ADAMHS-funded ECMH (home) services, while 1,274 children participated in IIC-funded Prevention and Inclusion Programs (classroom) services. These numbers reflect an increasing awareness of the importance of addressing mental health issues in young children. However, despite this progress, diagnosing and treating mental health disorders in infants and toddlers presents unique challenges, as traditional diagnostic tools were not designed for this age group.
Challenges of diagnosing and treating young children
Traditional diagnostic tools like the Diagnostic and Statistical Manual of Mental Disorders (DSM) and the International Classification of Diseases (ICD) are primarily designed for older children and adults. These tools are not equipped to address the specific mental health concerns of infants and toddlers. As a result, there is a growing need for specialized diagnostic guidelines and services to meet the developmental needs of young children.
Symptoms that could indicate mental health issues in infants, such as irritability or sleep disturbances, can be mistaken for typical developmental behaviors. This gap in diagnostic tools means that mental health conditions may go unrecognized or undiagnosed in young children. Without proper classification, early intervention becomes more challenging, delaying treatment that could be vital in a child's development.
The role of crosswalking for mental health services
One key strategy to address this gap is insurance billing crosswalking. Crosswalking is the process of identifying equivalencies between different code sets, such as those in the DSM and ICD-10, to ensure that appropriate services can be delivered to young children. This process is essential for mental health providers to obtain insurance reimbursement for services rendered to infants and toddlers. Crosswalking ensures that mental health services for young children are accessible by aligning diagnostic codes with the right treatment services, improving the availability of care.
Crosswalking ensures that mental health services for young children are accessible by aligning diagnostic codes with the right treatment services, improving the availability of care.
The Introduction of DC: 0-5
The Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood (DC: 0-5) is a crucial tool in addressing the mental health needs of young children. A revised version of the DC: Zero-Three manual, DC: 0-5 was expanded to include children up to the age of five. Developed to meet the needs of infants, toddlers, and preschool-age children, this manual offers a more comprehensive and accurate way to classify mental health and developmental disorders in early childhood. It provides clinicians with a framework that not only helps with diagnosing but also with delivering appropriate treatments.
By offering a clear path for diagnosis and treatment, DC: 0-5 empowers mental health professionals to provide appropriate care for children, which is essential for promoting healthier long-term developmental outcomes.
State adoption of crosswalks for ECMH services
The National Center for Children in Poverty has demonstrated how various states have adopted crosswalks to align diagnostic codes for children from infancy through age 5. These crosswalks improve the accessibility of mental health services by ensuring that providers can correctly bill for necessary treatments. The implementation of crosswalks has helped to reduce barriers to care and has made mental health services more widely available to young children.
The table below provides an example of how different states have adopted crosswalks for mental health services.

This table illustrates how different diagnostic codes can be cross walked to the appropriate services for young children. For instance, Autism Spectrum Disorder (ASD) is classified differently across various diagnostic manuals, with crosswalking, (ASD) can be appropriately recognized across different settings, including healthcare, educational, and insurance systems. This alignment allows clinicians to provide the appropriate interventions and ensures reimbursement for services designed to support children.
Medicaid to align with DC:0-5: A new era for early childhood behavioral health
House Bill 7 has officially passed, paving the way for Medicaid to better support children and their families by establishing a reimbursement structure for mental health services based on the DC:0-5 diagnostic model. By June 30, 2026, Medicaid will review and revise its policies to expand access to mental health care for young children and their caregivers. Starting in July 2026, providers will no longer need to rely on diagnostic crosswalks for billing, as Medicaid will fully adopt and integrate the DC:0-5 system.
Conclusion
Ensuring access to mental health services during the earliest stages of life is not just beneficial, it is essential. As awareness and understanding of Infant and Early Childhood Mental Health (IECMH) continue to grow, so does the need for systems that support timely, developmentally appropriate intervention. Tools like the DC: 0-5 and insurance billing crosswalks are bridging critical gaps in diagnosis and care, allowing providers to better serve our youngest children. With policy advancements like the passage of House Bill 7 and the upcoming Medicaid integration of DC: 0-5, Ohio is setting a strong example for how systems can evolve to meet the needs of children and families. By prioritizing early identification, reducing barriers to care, and supporting clinicians with the right tools, we are laying the groundwork for healthier childhoods, and ultimately, stronger communities.