F90.9 ICD-10-CM Code: Attention-deficit hyperactivity disorder, unspecified type
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
F90.9Attention-deficit hyperactivity disorder, unspecified type
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where F90.9 sits
- 1
Chapter 5
Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- 2
Section
Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
- 3
Category F90
Attention-deficit hyperactivity disorders
- 4
Code F90.9
Attention-deficit hyperactivity disorder, unspecified type
Documentation details
Notes for this code
Inclusion terms
- Attention-deficit hyperactivity disorder of childhood or adolescence NOS
- Attention-deficit hyperactivity disorder NOS
Code first
No “code first” instruction is listed for F90.9.
Use additional code
No “use additional code” instruction is listed for F90.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for F90.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for F90.9.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code F90.9 mean?
F90.9 is the FY 2027 U.S. ICD-10-CM code for “Attention-deficit hyperactivity disorder, unspecified type.”
Is F90.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, F90.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is F90.9 located in ICD-10-CM?
F90.9 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98) (F90–F98), under category F90, Attention-deficit hyperactivity disorders.
What coding notes are listed for F90.9?
Its listed inclusion terms are Attention-deficit hyperactivity disorder of childhood or adolescence NOS; Attention-deficit hyperactivity disorder NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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