F90.8 – Attention-deficit hyperactivity disorder, other type

Table of content

F90.8 diagnosis code: Attention-deficit hyperactivity disorder, other type Is F90.8 billable?Clinical information Synonyms include Other ICD-10 codes commonly used for ADHD FAQS

Use Code

F90.8 diagnosis code: Attention-deficit hyperactivity disorder, other type

The World Health Organization's ICD 10 lists F90.8 to classify presentations of attention-deficit hyperactivity disorder (ADHD) that do not clearly fall under the predominantly inattentive type (F90.0), predominantly hyperactive type (F90.1), or combined type (F90.2). It includes atypical forms or variants of ADHD that still meet the general diagnostic criteria but present differently.

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Is F90.8 billable?

Yes, F90.8 is a billable code. This implies that it can be used in a medical claim for insurance reimbursement purposes. To ensure correct billing, it must be employed explicitly for 'Attention-deficit hyperactivity disorder, other type.

Clinical information

ADHD is a neurodevelopmental condition that typically begins in early childhood and can persist into adolescence and adulthood. It is characterized by symptoms of inattention, hyperactivity, and impulsivity, which can affect a child’s behavior, learning, and academic achievement.
When diagnosing ADHD, clinicians must consider the presence of other mental disorders and mental health disorders, as ADHD frequently coexists with conditions such as conduct disorder, pervasive developmental disorders, and unspecified emotional disorders. These comorbidities can mask or mimic ADHD symptoms, making accurate diagnosis more complex.
Apart from using the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders criteria for ADHD, a careful assessment of the child’s family context is also essential for ADHD diagnosis, as family dynamics, parenting styles, and stressors can influence how symptoms are expressed and managed at home.
Early diagnosis allows for timely interventions that can improve outcomes across the board, including school performance, peer relationships, and emotional development. By recognizing ADHD as part of a broader picture of neurodevelopment and comorbid challenges, clinicians can create more effective and holistic care plans.

Synonyms include:

Attention-deficit disorder
Hyperkinetic syndrome
Hyperkinetic disorders
ADHD NOS (Not otherwise specified)
Family context conduct disorder

Other ICD-10 codes commonly used for ADHD

F90.0: Attention-deficit hyperactivity disorder, predominantly inattentive type
F90.1: Attention-deficit hyperactivity disorder, predominantly hyperactive type
F90.2: Attention-deficit hyperactivity disorder, combined type
F90.9: Attention-deficit hyperactivity disorder, unspecified type
F98.8: Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Commonly asked questions

What does attention-deficit hyperactivity disorder, unspecified type mean?

Attention-deficit hyperactivity disorder (ADHD), unspecified type, is diagnosed when a person shows clear signs of ADHD but does not meet the full criteria for any specific subtype (inattentive, hyperactive/impulsive, or combined). This classification is often used when information is incomplete or the presentation does not clearly align with other defined categories.

What is the rarest ADHD type?

The hyperactive/impulsive type is considered the rarest form of ADHD, especially in older children, adolescents, and adults. It is more commonly diagnosed in young children and often transitions into another subtype as they grow.

What are 5 symptoms of Attention-deficit hyperactivity disorder?

Individuals with ADHD may display a range of symptoms that affect attention, impulse control, and activity levels. Common signs include difficulty sustaining attention in tasks or play, frequent fidgeting or restlessness when seated, and impulsively blurting out answers before questions are finished. Many also struggle with organizing tasks and following through on instructions. Excessive talking or interrupting others during conversations is another hallmark symptom that can interfere with social interactions.