F90.0 – Attention-Deficit Hyperactivity Disorder, Predominantly Inattentive Type

Discover the ICD-10 code F90.0 for attention-deficit hyperactivity disorder, predominantly inattentive type, clinical info, synonyms, related codes, and more.

By Patricia Buenaventura on Jul 16, 2025.

Fact Checked by Gale Alagos.

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F90.0 diagnosis code: Attention-deficit hyperactivity disorder, predominantly inattentive type

F90.0 is the ICD-10 diagnosis code for Attention-deficit hyperactivity disorder (ADHD), predominantly inattentive type (ADHD-PI).
This code is located under the parent chapter of F01-F99: Mental, behavioral, and neurodevelopmental disorders, specifically under the code range F90-F98: Behavioral and emotional disorders with onset usually occurring in childhood and adolescence.
The specific code it's under, F90, typically includes attention deficit disorder with hyperactivity & attention deficit syndrome with hyperactivity.
ADHD-PI is a disorder characterized by difficulty paying attention, poor organization, forgetfulness, and a tendency to be easily distracted.
The disorder affects children and adults, but symptoms may manifest differently across age groups.

Is F90.0 billable?

Yes, F90.0 is a billable ICD-10 code. Healthcare professionals can use this code for insurance claims and reimbursement purposes. However, accurate coding is essential for proper documentation and treatment planning.

Clinical information

ADHD-PI may cause challenges in academic, social, and occupational settings due to difficulties with sustained mental effort, focus, and organization.
Some significant symptoms, such as making careless mistakes, difficulty organizing tasks, difficulty sustaining attention, being easily distracted, and being forgetful, must be present for at least six months and significantly interfere with daily functioning or development.
It is important to learn to differentiate ADHD-PI from hyperactivity/impulsivity presentation, and a combined type or presentation of ADHD.
Diagnosing ADHD with predominantly inattentive type involves a comprehensive assessment, including a clinical interview, observations, and questionnaires.
Treatment often involves a combination of medication, behavioral therapy, and psychosocial interventions to manage ADHD symptoms and improve functioning.
Stimulant medications, such as methylphenidate and amphetamine, are commonly prescribed to help improve focus and attention.
Non-stimulant medications, such as atomoxetine, may also be considered for individuals who cannot tolerate or have contraindications to stimulant medications.
Psychoeducation, organizational skills training, and cognitive-behavioral therapy (CBT) may be beneficial for addressing the behavioral and emotional aspects of ADHD-PI.
Regular follow-up and monitoring are crucial to ensure appropriate adjustments to treatment plans and promote long-term success.

Synonyms include

ADHD, predominantly inattentive type
Inattentive ADHD
Attention deficit disorder without hyperactivity
ADD, predominantly inattentive type
Predominantly inattentive attention deficit disorder
Attention deficit hyperactivity disorder, predominantly inattentive presentation
ADHD with inattentive symptoms

Other ICD-10 codes commonly used for attention-deficit hyperactivity disorder

F90.1: Attention-deficit hyperactivity disorder, predominantly hyperactive type
F90.2: Attention-deficit hyperactivity disorder, combined type
F90.8: Attention-deficit hyperactivity disorder, other type
F90.9: Attention-deficit hyperactivity disorder, unspecified type

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