2026 ICD-10-CM Diagnosis Code F43.25Adjustment disorder with mixed disturbance of emotions and conduct

ICD-10-CM Codes›F01–F99›F40-F48›F43

ICD-10-CM F43.25
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F43.25 is a billable ICD-10-CM diagnosis code for adjustment disorder with mixed disturbance of emotions and conduct. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as acute stress disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Trauma- and stressor-related disorders.

Code Identity

ICD-10-CM Code
F43.25
Billable Status
Yes — Valid for Submission
Code Describes
Adjustment disorder with mixed disturbance of emotions and conduct
Short Description
Adjustment disorder w mixed disturb of emotions and conduct
Parent Code
F43.2
Adjustment disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF40-F48Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
CategoryF43Reaction to severe stress, and adjustment disorders
This CodeF43.25Adjustment disorder with mixed disturbance of emotions and conduct

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute stress disorder
  • Adjustment disorder in remission
  • Adjustment disorder with disturbance of conduct
  • Adjustment disorder with mixed disturbance of emotions AND conduct
  • Adjustment disorder with mixed disturbance of emotions and conduct in remission
  • Stress reaction causing mixed disturbance of emotion and conduct

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)
      • adjustment (grief)
        • with
          • conduct disturbance
            • with emotional disturbance

Clinical ClassificationClinical

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

CCSR MBD007
Trauma- and stressor-related disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Acute Stress Disorder

    an anxiety disorder precipitated by an experience of intense fear or horror while exposed to a traumatic (especially life-threatening) event. the disorder is characterized by dissociative symptoms; vivid recollections of the traumatic event; avoidance of stimuli associated with the traumatic event; and a constant state of hyperarousal for no more than one month.

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 F43.25 to ICD-9-CMHistory

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

ICD-9-CM
309.4 Adj dis-emotion/conduct
Exact Match The mapping is direct, with no qualifiers.

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 F43.25Overview

Is F43.25 (Adjustment disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report adjustment disorder with mixed disturbance of emotions and conduct on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F43.25?

Under the General Equivalence Mappings, adjustment disorder with mixed disturbance of emotions and conduct converts to ICD-9-CM 309.4 (adj dis-emotion/conduct). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.