2026 ICD-10-CM Diagnosis Code F90.1Attention-deficit hyperactivity disorder, predominantly hyperactive type

ICD-10-CM Codes›F01–F99›F90-F98›F90

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

F90.1 is a billable ICD-10-CM diagnosis code for attention-deficit hyperactivity disorder, predominantly hyperactive type. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 886. Coders also document this condition as attention deficit hyperactivity disorder, predominantly hyperactive impulsive type. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

F90.1 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 133 for payment year 2026.

Code Identity

ICD-10-CM Code
F90.1
Billable Status
Yes — Valid for Submission
Code Describes
Attention-deficit hyperactivity disorder, predominantly hyperactive type
Short Description
Attn-defct hyperactivity disorder, predom hyperactive type
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 CodeF90.1Attention-deficit hyperactivity disorder, predominantly hyperactive type

Medicare Risk Adjustment (HCC)Billing

F90.1 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.

CMS-HCC V28 (Medicare Advantage Payment Model)
Not mapped
no payment category in the model that pays 100% of MA risk scores
Prior Model (CMS-HCC V24)
Not mapped under V24
this diagnosis newly risk-adjusts under the V28 model
Part D (RxHCC)
RxHCC 133 — Anxiety and Other Psychiatric Disorders
also risk-adjusts in the Part D prescription drug model (V08)

Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Attention deficit hyperactivity disorder, predominantly hyperactive impulsive type
  • Attention deficit hyperactivity disorder, predominantly hyperactive impulsive type in remission
  • Hyperkinesis with developmental delay

Tabular List NotesGuidance

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

Inclusion Terms

  • Attention-deficit/hyperactivity disorder, predominantly hyperactive impulsive presentation

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

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

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 F90.1 to ICD-9-CMHistory

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

ICD-9-CM
314.01 Attn deficit w hyperact
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 F90.1Overview

Is F90.1 (Attention-deficit hyperactivity disorders) a billable code?

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

What MS-DRG does F90.1 group to?

When attention-deficit hyperactivity disorder, predominantly hyperactive type is the principal diagnosis on an inpatient stay, it groups to MS-DRG 886 (behavioral and Developmental Disorders), which carries a relative weight of 2.0753. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F90.1?

Under the General Equivalence Mappings, attention-deficit hyperactivity disorder, predominantly hyperactive type converts to ICD-9-CM 314.01 (attn deficit w hyperact). The mapping is approximate, so confirm the match fits the documentation.

Does F90.1 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: F90.1 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 133 (Anxiety and Other Psychiatric Disorders).