F90.0 Attention-deficit hyperactivity disorder, predominantly inattentive type
ICD-10-CM · CMS code reference
F90.0 is ADHD (attention-deficit hyperactivity disorder) documented as the predominantly inattentive type or presentation. If the predominantly hyperactive type is documented, use F90.1; if the combined type, use F90.2.
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Also covers
- Attention-deficit/hyperactivity disorder, predominantly inattentive presentation
Includes
- attention deficit disorder with hyperactivity
- attention deficit syndrome with hyperactivity
Note
- Codes within categories F90-F98 may be used regardless of the age of a patient. These disorders generally have onset within the childhood or adolescent years, but may continue throughout life or not be diagnosed until adulthood
Excludes2
Not part of this code, but both can be coded when both are documented.
- anxiety disorders (F40.-, F41.-)
- mood [affective] disorders (F30-F39)
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
Related codes
F90.1Attention-deficit hyperactivity disorder, predominantly hyperactive type ICD-10-CMF90.2Attention-deficit hyperactivity disorder, combined type ICD-10-CMF90.8Attention-deficit hyperactivity disorder, other type ICD-10-CMF90.9Attention-deficit hyperactivity disorder, unspecified type ICD-10-CM
Common questions
What's the difference between F90.0, F90.1 and F90.2?
They split ADHD by the type the provider documents: F90.0 is predominantly inattentive, F90.1 is predominantly hyperactive and F90.2 is combined. If no type is documented, use F90.9.
Is F90.0 a billable code?
Yes. F90.0 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.