comorbidity
The simultaneous presence of two or more psychiatric disorders in the same individual.
Full Definition
Comorbidity in child and adolescent psychiatry refers to the co-occurrence of multiple psychiatric conditions in a single patient. This phenomenon is extremely common in pediatric mental health, with studies showing that most youth with one disorder meet criteria for at least one additional diagnosis. Common comorbid patterns include ADHD with learning disorders, anxiety with depression, and conduct disorder with substance use. Understanding comorbidity is essential for treatment planning, as interventions must address multiple conditions simultaneously and account for complex symptom interactions.
Usage
Usage note: Preferred over 'dual diagnosis' in formal clinical writing; be specific about which conditions are comorbid.
In Context
- "The high rate of comorbidity between ADHD and anxiety disorders complicates treatment selection." — Clinical research paper
- "Assessment revealed significant comorbidity that required integrated treatment planning." — Case consultation note