Strengthen how you support infants’ and toddlers’ social-emotional, cognitive and language development with essential, practice-based skills.

DC:0–5™ (Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood) Version 2.0 is the definitive diagnostic manual for professionals working with children from birth through age 5. Used worldwide by clinicians and early childhood specialists, it offers a developmentally grounded approach to identifying and treating mental health and developmental disorders in the earliest years, when intervention matters most.

First introduced in 1994 and widely trusted across disciplines, Version 2.0 sharpens clinical precision through a comprehensive five-axis system that integrates developmental context, relationships, and psychosocial stressors. It equips professionals to diagnose conditions not fully addressed in other systems, apply criteria with confidence, communicate clearly across teams, and align with standardized diagnostic codes. The result is earlier identification, stronger care planning, and better outcomes for children and families.

Fully updated to reflect current research and clinical practice, Version 2.0 includes refined guidance for children up to age 5, expanded considerations for younger ages, and updated diagnostic algorithms for emerging and evolving disorders.

In this four-part webinar series, you’ll uncover essential strategies and meaningful next steps to creating quality interactions with infants and toddlers so that you can become the brain builder you were born to be.

Missed a session? Recordings for the Webinar Series are typically available 24-48 hours after each session. Full viewing of the recordings is required to earn CEUs. Access to the course and recordings closes 30 days after the last live session. 

DC:0–5™ (Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood) Version 2.0 is the definitive diagnostic manual for professionals working with children from birth through age 5. Used worldwide by clinicians and early childhood specialists, it offers a developmentally grounded approach to identifying and treating mental health and developmental disorders in the earliest years, when intervention matters most.

First introduced in 1994 and widely trusted across disciplines, Version 2.0 sharpens clinical precision through a comprehensive five-axis system that integrates developmental context, relationships, and psychosocial stressors. It equips professionals to diagnose conditions not fully addressed in other systems, apply criteria with confidence, communicate clearly across teams, and align with standardized diagnostic codes. The result is earlier identification, stronger care planning, and better outcomes for children and families.

Fully updated to reflect current research and clinical practice, Version 2.0 includes refined guidance for children up to age 5, expanded considerations for younger ages, and updated diagnostic algorithms for emerging and evolving disorders.

DC:0–5™ (Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood) Version 2.0 is the definitive diagnostic manual for professionals working with children from birth through age 5. Used worldwide by clinicians and early childhood specialists, it offers a developmentally grounded approach to identifying and treating mental health and developmental disorders in the earliest years, when intervention matters most.

First introduced in 1994 and widely trusted across disciplines, Version 2.0 sharpens clinical precision through a comprehensive five-axis system that integrates developmental context, relationships, and psychosocial stressors. It equips professionals to diagnose conditions not fully addressed in other systems, apply criteria with confidence, communicate clearly across teams, and align with standardized diagnostic codes. The result is earlier identification, stronger care planning, and better outcomes for children and families.

Fully updated to reflect current research and clinical practice, Version 2.0 includes refined guidance for children up to age 5, expanded considerations for younger ages, and updated diagnostic algorithms for emerging and evolving disorders.

Baby Brain Infographic Handout PDF: You Can Help My Brain Grow from Day One! is a downloadable, research-informed infographic designed to make early brain development simple and actionable for parents and caregivers. Through eight clear, engaging messages, it explains how everyday interactions from the very beginning help build a strong foundation for healthy brain architecture.

This is a great resource to help children process difficult experiences and build a sense of safety and belonging. It follows a puppy and a child who have both faced tough times and, with the support of family, learn to understand their fears, feel lovable and find a place to call home.

The Growing Brain Participant Manual is a digital workbook designed to deepen your learning throughout the ZERO TO THREE Growing Brain curriculum. Organized into seven interactive units, it highlights key concepts, reflection prompts, and space for personal notes across topics including brain basics, factors that shape development, communication and language, cognition and executive function, social-emotional growth, understanding behavior, and everyday play. Use it during training and beyond to reinforce practical strategies that support healthy brain development in infants and toddlers.

These wheels tackle challenging behaviors and offer a 3-step approach to help you understand and manage behaviors such as biting, tantrums, inconsolable crying, separation and social withdrawal.

Fortalezca la manera en que apoya el desarrollo socioemocional, cognitivo y del lenguaje de los bebés y niños pequeños con habilidades esenciales basadas en la práctica.

A Guide to the Use of DC:0-5 Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood in Diagnostic Assessment and Treatment Planning. The Casebook is a compilation of case studies as a companion volume to DC:0-5TM: Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood (DC:0-5; ZERO TO THREE, 2016, 2021).

The DC:0–5 Casebook is designed to enhance understanding of not only clinical disorders but also the use and importance of the multiaxial framework in understanding the comprehensive diagnostic “story” of the child’s and family’s experience through a rich contextual frame. Each section of the casebook outlines the case and provides case conceptualization, diagnostic summary, discussion, and some questions for the reader to reflect on related to the case and clinical issues raised.