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ICD-10 Guide
ICD-10 CodesF48.1

F48.1

Billable

Depersonalization-derealization syndrome

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F48.1 is a billable code used to indicate a diagnosis of depersonalization-derealization syndrome.

Key Diagnostic Point:

Depersonalization-derealization syndrome is characterized by persistent or recurrent experiences of depersonalization, derealization, or both. Individuals may feel detached from their thoughts, feelings, or sense of self (depersonalization) or feel as though their surroundings are unreal or distorted (derealization). This syndrome can occur in the context of anxiety disorders, post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD), and various phobias. Patients often report a sense of disconnection from their own identity or the world around them, which can lead to significant distress and impairment in social, occupational, or other important areas of functioning. The onset of symptoms may be triggered by stress, trauma, or substance use, and the experiences can be transient or chronic. Effective management often involves psychotherapy, particularly cognitive-behavioral therapy (CBT), and may include pharmacotherapy for underlying anxiety or mood disorders. Understanding the interplay between these conditions is crucial for accurate diagnosis and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Overlap with other anxiety disorders and PTSD
  • Variability in symptom presentation
  • Potential for misdiagnosis with other dissociative disorders
  • Need for comprehensive patient history

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to differentiate from other dissociative disorders
  • Lack of evidence for chronicity of symptoms
  • Insufficient linkage between diagnosis and treatment

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed patient history, symptom duration, and impact on daily functioning.

Common Clinical Scenarios

Patients presenting with anxiety, trauma history, or dissociative symptoms.

Billing Considerations

Consideration of comorbid conditions and the need for a multidisciplinary approach.

Psychology

Documentation Requirements

Comprehensive psychological assessments and treatment plans.

Common Clinical Scenarios

Patients undergoing therapy for anxiety or trauma-related disorders.

Billing Considerations

Focus on therapeutic progress and symptom tracking.

Coding Guidelines

Inclusion Criteria

Use F48.1 When
  • According to ICD
  • 10 coding guidelines, F48
  • 1 should be used when the symptoms of depersonalization and derealization are persistent and cause significant distress or impairment
  • It is important to document the duration of symptoms and any triggering events

Exclusion Criteria

Do NOT use F48.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient

Clinical Scenario

Used for therapy sessions addressing symptoms of depersonalization-derealization.

Documentation Requirements

Document the focus of therapy and progress notes.

Specialty Considerations

Psychiatrists and psychologists should ensure alignment between diagnosis and treatment.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mental health disorders, including F48.1, which helps in better tracking and treatment of patients with depersonalization-derealization syndrome.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mental health disorders, including F48.1, which helps in better tracking and treatment of patients with depersonalization-derealization syndrome.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mental health disorders, including F48.1, which helps in better tracking and treatment of patients with depersonalization-derealization syndrome.

Resources

Clinical References

  • •
    American Psychiatric Association - DSM-5

Coding & Billing References

  • •
    American Psychiatric Association - DSM-5

Frequently Asked Questions

What are the primary symptoms of depersonalization-derealization syndrome?

The primary symptoms include persistent feelings of detachment from oneself (depersonalization) and feelings of unreality regarding one's surroundings (derealization). These symptoms can lead to significant distress and impairment in daily functioning.