2027 ICD-10-CM Diagnosis Code F90.0Attention-deficit hyperactivity disorder, predominantly inattentive type

ICD-10-CM Codes›F01–F99›F90-F98›F90

ICD-10-CM F90.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F90.0 is a billable ICD-10-CM diagnosis code for attention-deficit hyperactivity disorder, predominantly inattentive type. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 886. Coders also document this condition as attention deficit hyperactivity disorder, inattentive presentation. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

F90.0 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 2027.

Code Identity

ICD-10-CM Code
F90.0
Billable Status
Yes — Valid for Submission
Code Describes
Attention-deficit hyperactivity disorder, predominantly inattentive type
Short Description
Attn-defct hyperactivity disorder, predom inattentive 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 CodeF90.0Attention-deficit hyperactivity disorder, predominantly inattentive type

Medicare Risk Adjustment (HCC)Billing

F90.0 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 2027 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, inattentive presentation
  • Attention deficit hyperactivity disorder, predominantly inattentive type
  • Attention deficit hyperactivity disorder, predominantly inattentive type in remission

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F90.0: its own notes plus those printed at F90, block F90-F98, and Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From F90 Attention-deficit hyperactivity disorders applies to 5 codes
  • attention deficit disorder with hyperactivity
  • attention deficit syndrome with hyperactivity
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Attention-deficit/hyperactivity disorder, predominantly inattentive presentation

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From F90 Attention-deficit hyperactivity disorders applies to 5 codes
  • anxiety disorders (F40.-, F41.-)
  • mood [affective] disorders (F30-F39)
  • pervasive developmental disorders (F84.-)
  • schizophrenia (F20.-)
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Notes

General instructions on how these codes are used.

From Block F90-F98 Behavioral and emotional disorders with onset usually occurring in childhood and adolescence applies to 33 codes
  • 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

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F90.0, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming F90.0: they are not reported together with it, unless the two conditions are unrelated.

  • R41.840 Attention and concentration deficit
    attention-deficit hyperactivity disorders (F90.-) names F90.-, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming F90.0: its condition is not part of those codes, and both may be reported when the patient has both.

  • F91 Conduct disorders
    conduct problems associated with attention-deficit hyperactivity disorder (F90.-) names F90.-, which includes this code
  • F94.2 Disinhibited attachment disorder of childhood
    attention-deficit hyperactivity disorders (F90.-) names F90.-, which includes this code

Code Also 1

These codes say F90.0 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • QA0 Neurodevelopmental disorders related to specific genetic pathogenic variants
    attention-deficit hyperactivity disorders (F90.-) names F90.-, which includes this code

Notes 1

These notes mention F90.0.

  • Block F90-F98 Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
    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 names F90-F98, which includes this code

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

Clinical InformationClinical

  • Attention Deficit Disorder with Hyperactivity

    a behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. the disorder is more frequent in males than females. onset is in childhood. symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood. (from dsm-v)

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 F90.0 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.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F90.0Overview

Is F90.0 (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 inattentive type on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does F90.0 group to?

When attention-deficit hyperactivity disorder, predominantly inattentive 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 1.6455. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F90.0?

Under the General Equivalence Mappings, attention-deficit hyperactivity disorder, predominantly inattentive type converts to ICD-9-CM 314.00 (attn defic nonhyperact). The mapping is approximate, so confirm the match fits the documentation.

Does F90.0 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: F90.0 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).