2026 ICD-10-CM Diagnosis Code F93.0Separation anxiety disorder of childhood

ICD-10-CM Codes›F01–F99›F90-F98›F93

ICD-10-CM F93.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F93.0 is a billable ICD-10-CM diagnosis code for separation anxiety disorder of childhood. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as anxiety disorder of childhood. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Anxiety and fear-related disorders.

Code Identity

ICD-10-CM Code
F93.0
Billable Status
Yes — Valid for Submission
Code Describes
Separation anxiety disorder of childhood
Short Description
Separation anxiety disorder of childhood
Same as the full description in the CMS dataset.
Parent Code
F93
Emotional disorders with onset specific to childhood

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF90-F98Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
CategoryF93Emotional disorders with onset specific to childhood
This CodeF93.0Separation anxiety disorder of childhood

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anxiety disorder of childhood
  • Anxiety disorder of childhood OR adolescence
  • Separation anxiety
  • Separation anxiety disorder of childhood
  • Separation anxiety disorder of childhood, early onset

Tabular List NotesGuidance

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

Type 2 Excludes

  • mood affective disorders F30 F39
  • nonpsychotic mental disorders F40 F48
  • phobic anxiety disorder of childhood F40.8
  • social phobia F40.1

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.

    • Anxiety
      • separation, abnormal (of childhood)
    • Disorder(of)
      • separation anxiety, of childhood
    • Separation
      • anxiety, abnormal (of childhood)

Clinical ClassificationClinical

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

CCSR MBD005
Anxiety and fear-related disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Anxiety

Anxiety is a feeling of fear, dread, and uneasiness. It might cause you to sweat, feel restless and tense, and have a rapid heartbeat. It can be a normal reaction to stress. For example, you might feel anxious when faced with a difficult problem at work, before taking a test, or before making an important decision.

The full article covers:

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

Read the full article at MedlinePlus

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

Convert F93.0 to ICD-9-CMHistory

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

ICD-9-CM
309.21 Separation anxiety
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 F93.0Overview

Is F93.0 (Emotional disorders with onset specific to childhood) a billable code?

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

What is the ICD-9 equivalent of F93.0?

Under the General Equivalence Mappings, separation anxiety disorder of childhood converts to ICD-9-CM 309.21 (separation anxiety). The mapping is a direct match.

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.