Attention-deficit/hyperactivity disorder (ADHD) can present in different ways, but the combined type is the most commonly diagnosed presentation across children, adolescents, and adults. Individuals with this subtype experience both persistent inattention and hyperactive-impulsive symptoms, which together can significantly disrupt academic performance, work productivity, relationships, and daily functioning.
The ICD-10-CM code F90.2 is used to diagnose Attention-Deficit/Hyperactivity Disorder, Combined Type. This is a billable ICD-10-CM code that applies when both inattentive and hyperactive-impulsive symptom criteria are met. The diagnosis reflects a neurodevelopmental condition that typically begins in childhood but often persists into adulthood.
F90.2 (ICD-10 Code for ADHD, Combined Type) is classified under Mental, Behavioral, and Neurodevelopmental Disorders, within the category Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90–F98), and remains valid for 2026 ICD-10-CM reporting and insurance reimbursement.
Key Details of ICD-10 Code F90.2
Code: F90.2
Description: Attention-deficit/hyperactivity disorder, combined type
Definition: A subtype of ADHD characterized by clinically significant symptoms of both inattention and hyperactivity/impulsivity.
Core Symptoms:
- Inattention: Disorganization, forgetfulness, difficulty sustaining attention, distractibility, failure to complete tasks
- Hyperactivity/Impulsivity: Fidgeting, excessive movement, restlessness, interrupting others, difficulty waiting turns
Clinical Significance:
Symptoms must:
- Persist for at least six months
- Be developmentally inappropriate
- Cause functional impairment
- Be present in two or more settings (e.g., school, work, home)
Exclusions: F90.2 should not be used if symptoms are better explained by anxiety disorders, mood disorders, schizophrenia, or pervasive developmental disorders.
Billing Status: F90.2 is a specific, billable ICD-10-CM code used for diagnosis, treatment planning, and reimbursement.
When to Use F90.2 for ADHD, Combined Type
Clinicians should use F90.2 (ICD-10 Code for ADHD, Combined Type) when a patient clearly meets full ADHD criteria and demonstrates both inattentive and hyperactive-impulsive symptom patterns. This diagnosis is appropriate when attentional difficulties coexist with impulsivity or motor restlessness that significantly interfere with functioning.
Although ADHD often begins in childhood, many individuals—especially adults—are diagnosed later in life. In these cases, documentation should establish historical symptom presence, even if the current presentation is more cognitively than behaviorally driven. The combined-type diagnosis remains valid across the lifespan when criteria are met.
F90.2 Compared to Other ADHD Subtypes
Combined-type ADHD differs from predominantly inattentive ADHD (F90.0) in that hyperactive-impulsive symptoms are not minimal or secondary, but clearly present and impairing. In contrast, inattentive-type ADHD is characterized primarily by internal distractibility and organizational difficulties, with little observable hyperactivity.
When compared to predominantly hyperactive-impulsive ADHD (F90.1), combined type includes a broader range of cognitive and executive functioning impairments. This wider symptom profile often contributes to more pervasive academic, occupational, and relational challenges, underscoring the importance of accurate subtype identification.
F90.2 vs Anxiety and Mood Disorders
ADHD symptoms frequently overlap with anxiety or depressive disorders, particularly difficulties with concentration, restlessness, and emotional regulation. However, ADHD symptoms are chronic, developmentally persistent, and present across contexts, whereas attention difficulties related to mood or anxiety disorders tend to fluctuate with emotional state or situational stress.
If attentional and behavioral symptoms improve only with mood or anxiety treatment, clinicians should reconsider an ADHD diagnosis. Conversely, persistent cross-situational symptoms despite mood stabilization support continued use of F90.2.
Related ADHD ICD-10 Codes
Other ADHD classifications include:
- F90.0 – ADHD, predominantly inattentive type
- F90.1 – ADHD, predominantly hyperactive-impulsive type
- F90.9 – ADHD, unspecified typ
Choosing the most specific code improves diagnostic accuracy and payer compliance.
Interventions and CPT Codes for ADHD, Combined Type
Treatment is typically multimodal, addressing both attentional and behavioral regulation.
Individual Psychotherapy
Supports executive functioning, emotional regulation, and coping strategies.
- 90832 – 30-minute psychotherapy
- 90834 – 45-minute psychotherapy
- 90837 – 60-minute psychotherapy
Medication Evaluation and Management
Stimulant and non-stimulant medications are commonly considered when impairment is significant.
- 90791 / 90792 – Psychiatric diagnostic evaluation
- 99213–99215 – Medication management (based on complexity)
Psychoeducation and Skills Training
Often integrated into therapy to improve time management, impulse control, and organization.
Clinical Documentation Considerations for F90.2
Documentation for F90.2 (ICD-10 Code for ADHD, Combined Type) should clearly establish the presence of both inattentive and hyperactive-impulsive symptoms, their persistence for six months or longer, and their impact across multiple settings. Records should also document functional impairment and the clinical rationale for excluding alternative diagnoses.
Because combined-type ADHD is often scrutinized during insurance review, thorough documentation is critical. Mentalyc helps clinicians capture symptom patterns, cross-context impairment, and longitudinal history in a structured, compliant manner—supporting accurate ADHD documentation while reducing administrative burden and maintaining continuity of care.