2026 ICD-10-CM Diagnosis Code F84.8Other pervasive developmental disorders

ICD-10-CM Codes›F01–F99›F80-F89›F84

ICD-10-CM F84.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F84.8 is a billable ICD-10-CM diagnosis code for other pervasive developmental disorders. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as atypical childhood psychoses. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

Code Identity

ICD-10-CM Code
F84.8
Billable Status
Yes — Valid for Submission
Code Describes
Other pervasive developmental disorders
Short Description
Other pervasive developmental disorders
Same as the full description in the CMS dataset.
Parent Code
F84
Pervasive developmental disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF80-F89Pervasive and specific developmental disorders
CategoryF84Pervasive developmental disorders
This CodeF84.8Other pervasive developmental disorders

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Atypical childhood psychoses
  • Autistic spectrum disorder with isolated skills
  • FOXG1 syndrome
  • Pathological demand avoidance
  • Psychosis with origin in childhood

Tabular List NotesGuidance

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

Inclusion Terms

  • Overactive disorder associated with intellectual disabilities and stereotyped movements

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)
      • developmental
        • pervasive
          • specified NEC
    • Psychosis, psychotic
      • childhood
        • atypical
    • Psychosis, psychotic
      • infantile
        • atypical

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

Autism Spectrum Disorder

Autism spectrum disorder (ASD) is a neurological and developmental disorder that begins early in childhood and lasts throughout a person's life. It affects how a person acts and interacts with others, communicates, and learns. It includes what used to be known as Asperger syndrome and pervasive developmental disorders.

Read the full article at MedlinePlus

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

Convert F84.8 to ICD-9-CMHistory

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

ICD-9-CM
299.80 Pervasv dev dis-cur NEC
Approximate The match is approximate rather than exact.
ICD-9-CM
299.81 Pervasv dev dis-res NEC
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 F84.8Overview

Is F84.8 (Pervasive developmental disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other pervasive developmental disorders on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F84.8?

Under the General Equivalence Mappings, other pervasive developmental disorders converts to ICD-9-CM 299.80 (pervasv dev dis-cur NEC) and 299.81 (pervasv dev dis-res NEC). 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.