F90.9 – Attention-deficit hyperactivity disorder, unspecified type

ICD-10-CM 2027 diagnosis code · Behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Billable code

ICD-10-CM code F90.9

Code: F90.9 (claims format: F909)
Description: Attention-deficit hyperactivity disorder, unspecified type
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F90-F98 Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
Parent codes: F90

Notes for F90.9

Applicable to:

Attention-deficit hyperactivity disorder of childhood or adolescence NOS
Attention-deficit hyperactivity disorder NOS

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

F90 – Attention-deficit hyperactivity disorders

Includes:

attention deficit disorder with hyperactivity
attention deficit syndrome with hyperactivity

Excludes2 (not included here):

anxiety disorders (F40.-, F41.-)
mood [affective] disorders (F30-F39)
pervasive developmental disorders (F84.-)
schizophrenia (F20.-)

Block F90-F98

Notes:

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

Index terms for F90.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in F90

Frequently asked questions

What is ICD-10 code F90.9?

F90.9 is the ICD-10-CM code for attention-deficit hyperactivity disorder, unspecified type, in the block F90-F98 (Behavioral and emotional disorders with onset usually occurring in childhood and adolescence).

Is F90.9 a billable code?

Yes. F90.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does F90.9 belong to?

It belongs to category F90 – Attention-deficit hyperactivity disorders.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.