2026 ICD-10-CM Diagnosis Code F63.81Intermittent explosive disorder

ICD-10-CM Codes›F01–F99›F60-F69›F63

ICD-10-CM F63.81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F63.81 is a billable ICD-10-CM diagnosis code for intermittent explosive disorder. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as emotionally unstable personality disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Disruptive, impulse-control and conduct disorders.

Code Identity

ICD-10-CM Code
F63.81
Billable Status
Yes — Valid for Submission
Code Describes
Intermittent explosive disorder
Short Description
Intermittent explosive disorder
Same as the full description in the CMS dataset.
Parent Code
F63.8
Other impulse disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF60-F69Disorders of adult personality and behavior
CategoryF63Impulse disorders
This CodeF63.81Intermittent explosive disorder

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Emotionally unstable personality disorder
  • Explosive personality disorder
  • Intermittent explosive disorder
  • Isolated explosive disorder

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)
      • intermittent explosive

Clinical ClassificationClinical

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

CCSR MBD008
Disruptive, impulse-control and conduct disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intermittent Explosive Disorder

    a disorder characterized by recurrent episodes of serious assaultive acts or destruction of property due to a failure to resist aggressive impulses; the degree of aggression during these episodes is grossly out of proportion to any psychosocial provocation. the aggressive episodes are not etiologically linked to another mental disorder, a general medical condition, or substance use.

Patient EducationClinical

Mental Disorders

Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..

The full article covers:

  • What are mental disorders?
  • What are some types of mental disorders?
  • What causes mental disorders?
  • Who is at risk for mental disorders?
  • How are mental disorders diagnosed?
  • What are the treatments for mental disorders?

Read the full article at MedlinePlus

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

Convert F63.81 to ICD-9-CMHistory

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

ICD-9-CM
312.34 Intermitt explosive dis
Approximate The match is approximate rather than exact.
ICD-9-CM
312.35 Isolated explosive dis
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 F63.81Overview

Is F63.81 (Other impulse disorders) a billable code?

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

What is the ICD-9 equivalent of F63.81?

Under the General Equivalence Mappings, intermittent explosive disorder converts to ICD-9-CM 312.34 (intermitt explosive dis) and 312.35 (isolated explosive dis). 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.