2026 ICD-10-CM Diagnosis Code F90.9Attention-deficit hyperactivity disorder, unspecified type

ICD-10-CM Codes›F01–F99›F90-F98›F90

ICD-10-CM F90.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F90.9 is a billable ICD-10-CM diagnosis code for attention-deficit hyperactivity disorder, unspecified type. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

Code Identity

ICD-10-CM Code
F90.9
Billable Status
Yes — Valid for Submission
Code Describes
Attention-deficit hyperactivity disorder, unspecified type
Short Description
Attention-deficit hyperactivity disorder, unspecified type
Same as the full description in the CMS dataset.
Parent Code
F90
Attention-deficit hyperactivity disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF90-F98Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
CategoryF90Attention-deficit hyperactivity disorders
This CodeF90.9Attention-deficit hyperactivity disorder, unspecified type

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acromegaly
  • Adult attention deficit hyperactivity disorder
  • Articulation disorder due to hyperkinesis
  • Attention deficit hyperactivity disorder
  • Child attention deficit disorder
  • Developmental articulation disorder
  • Disorder of speech and language development
  • Hyperactive behavior
  • Hyperkinetic conduct disorder
  • Hyperkinetic syndrome with developmental delay
  • Speech and phonology impairments
  • X-linked intellectual disability with acromegaly and hyperactivity syndrome

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

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

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • attention-deficit hyperactivity (adolescent) (adult) (child)
    • Hyperactive, hyperactivity
    • Hyperactive, hyperactivity
      • child

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD014
Neurodevelopmental disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Acromegaly

    a condition caused by prolonged exposure to excessive human growth hormone in adults. it is characterized by bony enlargement of the face; lower jaw (prognathism); hands; feet; head; and thorax. the most common etiology is a growth hormone-secreting pituitary adenoma. (from joynt, clinical neurology, 1992, ch36, pp79-80)

  • Growth Hormone-Secreting Pituitary Adenoma

    a pituitary tumor that secretes growth hormone. in humans, excess human growth hormone leads to acromegaly.

Patient EducationClinical

Attention Deficit Hyperactivity Disorder

ADHD is a neurodevelopmental disorder. It is usually first diagnosed in childhood and often lasts into adulthood. But some people don't get diagnosed with ADHD until they are adults. ADHD involves:

The full article covers:

  • What is attention deficit hyperactivity disorder (ADHD)?
  • What are the types of attention deficit hyperactivity disorder (ADHD)?
  • What causes attention deficit hyperactivity disorder (ADHD)?
  • What are the symptoms of attention deficit hyperactivity disorder (ADHD)?
  • How is attention deficit hyperactivity disorder (ADHD) diagnosed?
  • What are the treatments for attention deficit hyperactivity disorder (ADHD)?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F90.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
314.00 Attn defic nonhyperact
Approximate The match is approximate rather than exact.
ICD-9-CM
314.01 Attn deficit w hyperact
Approximate The match is approximate rather than exact.
ICD-9-CM
314.9 Hyperkinetic synd NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F90.9Overview

Is F90.9 (Attention-deficit hyperactivity disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report attention-deficit hyperactivity disorder, unspecified type on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F90.9?

Under the General Equivalence Mappings, attention-deficit hyperactivity disorder, unspecified type converts to ICD-9-CM 314.00 (attn defic nonhyperact), 314.01 (attn deficit w hyperact), and 314.9 (hyperkinetic synd NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.