F90.9: Attention-deficit hyperactivity disorder, unspecified type
Billable ICD-10-CM code, FY2027
What ICD-10-CM says
Includes
- Attention-deficit hyperactivity disorder of childhood or adolescence NOS
- Attention-deficit hyperactivity disorder NOS
Notes at F90, Attention-deficit hyperactivity disorders (they apply to every code under it)
Includes
- attention deficit disorder with hyperactivity
- attention deficit syndrome with hyperactivity
Excludes2 (not part of F90.9; both may be coded)
- anxiety disorders (F40.-, F41.-)
- mood [affective] disorders (F30-F39)
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
What F90.9 covers
F90.9 is for ADHD when the record does not say which presentation the patient has. It includes ADHD NOS and ADHD of childhood or adolescence NOS. The F90 codes apply to adults as well as children.
Primary care, pediatrics and psychiatry use it, often when ADHD is carried forward from an earlier diagnosis. The specific presentations are F90.0 (predominantly inattentive), F90.1 (predominantly hyperactive) and F90.2 (combined). F90.8 is other type.
Billing and coding notes
F90.9 is billable but unspecified. When the clinician documents a presentation, use F90.0, F90.1 or F90.2 instead.
The F90 excludes2 list covers anxiety disorders, mood disorders, pervasive developmental disorders and schizophrenia, so those can be coded with F90.9 when documented.
Related codes under F90
Questions about F90.9
Is F90.9 used for adult ADHD?
Yes, when the presentation is not documented. Nothing in F90 limits the codes to children. If the presentation is known, use F90.0, F90.1 or F90.2.
What is the difference between F90.9 and F90.2?
F90.9 is ADHD with no presentation specified. F90.2 is combined type, with both inattentive and hyperactive-impulsive symptoms documented.
ICD-10-CM in CloudMedico
In CloudMedico, a visit's diagnoses come from the current ICD-10-CM list. For US practices, the visit flags a code that isn't billable on its date, and a superbill made from an invoice carries the visit's diagnoses.
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