Is F90.2 a billable ICD-10-CM code?

Yes, F90.2 is a billable code in the FY2027 ICD-10-CM code set (effective October 1, 2026). It has no further subdivisions. The other billable codes in category F90 are F90.0 (predominantly inattentive type), F90.1 (predominantly hyperactive type), F90.8 (other type), and F90.9 (unspecified type).

What are the diagnostic criteria for F90.2?

In children, the combined type requires six or more symptoms of inattention and six or more symptoms of hyperactivity-impulsivity, present often for at least six months. Symptoms must be observed before age 12 (the diagnosis itself may be made later), occur in at least two settings such as home and school, exceed what is expected for developmental level, and interfere with functioning.

What is the difference between F90.0, F90.1, and F90.2?

F90.0 is the predominantly inattentive type, where only the inattention threshold is met. F90.1 is the predominantly hyperactive type, where only the hyperactive-impulsive threshold is met. F90.2 is the combined type, where both thresholds are met. The code reflects which symptom groups currently meet criteria, so it can change as a client's presentation changes.

When should F90.9 be used instead of F90.2?

F90.9 (Attention-deficit hyperactivity disorder, unspecified type) is for when the record does not establish which presentation applies. Once the assessment documents that both symptom groups meet threshold, F90.2 is the more accurate code.

What scale is used to screen for F90.2?

For children, information is gathered from parents, teachers, and clinicians, often on standardized forms such as the Vanderbilt Assessment Scale, the Conners Comprehensive Behavior Rating Scale, or the ADHD Rating Scale-5, with versions for families and school staff. For adults, the Adult ADHD Self-Report Scale (ASRS) is a common screener. Rating scales should not be used alone to make a diagnosis.

What are the symptoms of combined-type ADHD?

Combined-type ADHD includes both symptom groups. Inattention shows up as trouble paying attention, staying on task, and staying organized. Hyperactivity shows up as moving around at inappropriate times, feeling restless, or talking excessively, and impulsivity as interrupting or intruding on others and having trouble waiting one's turn. Symptoms begin in childhood and usually continue into the teen years and adulthood.

What conditions can look like ADHD?

Autism spectrum disorder, learning disorders, anxiety, depression, behavioural disorders, and trauma or PTSD all need to be considered. Medical causes to assess include sleep-disordered breathing, lead exposure, iron deficiency, and traumatic brain injury. The F90 category carries an Excludes2 note for anxiety disorders, mood disorders, pervasive developmental disorders, and schizophrenia, so a co-occurring condition can be coded alongside F90.2.

How is combined-type ADHD treated?

For school-aged children, initial treatment is parent training and/or classroom behavioural intervention combined with medication. For preschool-aged children, treatment starts with parent training in behaviour management. Stimulants such as methylphenidate or dextroamphetamine are the most common medications, with atomoxetine and alpha-2 agonists as second-line options. Cognitive behavioural therapy is recommended, especially for adults.

Does ADHD co-occur with other conditions?

Often. NIMH notes that ADHD frequently co-occurs with disruptive behaviour, learning disorders, sleep problems, anxiety, and depression, which can make diagnosis and treatment harder. Screen for these alongside ADHD and code each condition that meets criteria.

F90.2ICD-10-CMAttention-Deficit Hyperactivity Disorder, Combined Type

Official ICD-10-CM descriptor: Attention-deficit hyperactivity disorder, combined type · Category header, not billable: use a more specific code

ADHD in which both inattention and hyperactivity-impulsivity criteria are met, with symptoms at threshold in each group (six or more in children) persisting for at least six months across two or more settings.

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DSM-5-TR diagnostic criteria summary

F90.2 requires:

Six or more inattention symptoms and six or more hyperactivity-impulsivity symptoms, present often for at least six months (the threshold for children).
Symptoms observed before age 12, although the diagnosis may be made later.
Symptoms in at least two settings (for example, home and school).
Symptoms beyond what is expected for developmental level, interfering with functioning.

The FY2027 ICD-10-CM tabular list includes "Attention-deficit/hyperactivity disorder, combined presentation" under F90.2.

Source: Sulkes, S. B. (2026). Attention-deficit/hyperactivity disorder (ADHD). Merck Manual Professional Edition, summarizing DSM-5-TR (American Psychiatric Association, 2022).

Differential diagnosis

F90.0 Predominantly Inattentive Type or F90.1 Predominantly Hyperactive Type, when only one symptom group meets threshold.
F90.9 Unspecified Type, when the presentation has not been established.
Autism Spectrum Disorder (F84.0), social communication differences that can resemble inattention.
Anxiety and depressive disorders, where concentration problems may track mood or worry rather than a lifelong pattern.
Trauma or PTSD, hyperarousal and concentration problems after trauma.
Medical causes, including sleep-disordered breathing, lead exposure, iron deficiency, and traumatic brain injury.

Common comorbidities

ADHD often co-occurs with disruptive behaviour, learning disorders, sleep problems, anxiety, and depression (NIMH). Pair an ADHD measure with the PHQ-9 and GAD-7 (or age-appropriate equivalents) so co-occurring conditions are captured and coded separately.

Documentation patterns

Initial assessment: parent and teacher rating forms (or ASRS for adults), symptom counts in both groups, the settings where symptoms appear, and evidence of onset before age 12.
Follow-up visits: repeat the same rating scale to track response to treatment, and record whether both symptom groups still meet threshold.

Sources

Centers for Disease Control and Prevention, National Center for Health Statistics. (2026). ICD-10-CM Tabular List of Diseases and Injuries, FY2027 (effective October 1, 2026). https://ftp.cdc.gov/pub/Health_Statistics/NCHS/Publications/ICD10CM/2027/
Sulkes, S. B. (2026). Attention-deficit/hyperactivity disorder (ADHD). Merck Manual Professional Edition.
National Institute of Mental Health. Attention-Deficit/Hyperactivity Disorder (ADHD). https://www.nimh.nih.gov/health/topics/attention-deficit-hyperactivity-disorder-adhd
American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).

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Frequently asked questions

What is ICD-10 code F90.2?
F90.2 is the ICD-10-CM code for Attention-deficit hyperactivity disorder, combined type. The FY2027 tabular list includes "Attention-deficit/hyperactivity disorder, combined presentation", the DSM-5-TR wording, under this code. It applies when both inattention and hyperactivity-impulsivity criteria are met.
Is F90.2 a billable ICD-10-CM code?
Yes, F90.2 is a billable code in the FY2027 ICD-10-CM code set (effective October 1, 2026). It has no further subdivisions. The other billable codes in category F90 are F90.0 (predominantly inattentive type), F90.1 (predominantly hyperactive type), F90.8 (other type), and F90.9 (unspecified type).
What are the diagnostic criteria for F90.2?
In children, the combined type requires six or more symptoms of inattention and six or more symptoms of hyperactivity-impulsivity, present often for at least six months. Symptoms must be observed before age 12 (the diagnosis itself may be made later), occur in at least two settings such as home and school, exceed what is expected for developmental level, and interfere with functioning.
What is the difference between F90.0, F90.1, and F90.2?
F90.0 is the predominantly inattentive type, where only the inattention threshold is met. F90.1 is the predominantly hyperactive type, where only the hyperactive-impulsive threshold is met. F90.2 is the combined type, where both thresholds are met. The code reflects which symptom groups currently meet criteria, so it can change as a client's presentation changes.
When should F90.9 be used instead of F90.2?
F90.9 (Attention-deficit hyperactivity disorder, unspecified type) is for when the record does not establish which presentation applies. Once the assessment documents that both symptom groups meet threshold, F90.2 is the more accurate code.
What scale is used to screen for F90.2?
For children, information is gathered from parents, teachers, and clinicians, often on standardized forms such as the Vanderbilt Assessment Scale, the Conners Comprehensive Behavior Rating Scale, or the ADHD Rating Scale-5, with versions for families and school staff. For adults, the Adult ADHD Self-Report Scale (ASRS) is a common screener. Rating scales should not be used alone to make a diagnosis.
What are the symptoms of combined-type ADHD?
Combined-type ADHD includes both symptom groups. Inattention shows up as trouble paying attention, staying on task, and staying organized. Hyperactivity shows up as moving around at inappropriate times, feeling restless, or talking excessively, and impulsivity as interrupting or intruding on others and having trouble waiting one's turn. Symptoms begin in childhood and usually continue into the teen years and adulthood.
What conditions can look like ADHD?
Autism spectrum disorder, learning disorders, anxiety, depression, behavioural disorders, and trauma or PTSD all need to be considered. Medical causes to assess include sleep-disordered breathing, lead exposure, iron deficiency, and traumatic brain injury. The F90 category carries an Excludes2 note for anxiety disorders, mood disorders, pervasive developmental disorders, and schizophrenia, so a co-occurring condition can be coded alongside F90.2.
How is combined-type ADHD treated?
For school-aged children, initial treatment is parent training and/or classroom behavioural intervention combined with medication. For preschool-aged children, treatment starts with parent training in behaviour management. Stimulants such as methylphenidate or dextroamphetamine are the most common medications, with atomoxetine and alpha-2 agonists as second-line options. Cognitive behavioural therapy is recommended, especially for adults.
Does ADHD co-occur with other conditions?
Often. NIMH notes that ADHD frequently co-occurs with disruptive behaviour, learning disorders, sleep problems, anxiety, and depression, which can make diagnosis and treatment harder. Screen for these alongside ADHD and code each condition that meets criteria.