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ICD-10 Guide
DiagnosesAdjustment Disorder With Mixed Anxiety And Depressed Mood

Adjustment Disorder With Mixed Anxiety And Depressed Mood

ICD-10 Coding for Adjustment Disorder with Mixed Anxiety and Depressed Mood(F43.23)

PRIMARY SPECIALTYPsychiatry
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Adjustment Disorder With Mixed Anxiety And Depressed Mood?
Essential facts and insights about Adjustment Disorder with Mixed Anxiety and Depressed Mood

Key Clinical Considerations:

  • Presence of emotional or behavioral symptoms in response to an identifiable stressor occurring within three months of the onset of the stressor.
  • Symptoms include a combination of anxiety and depressive mood, such as feelings of sadness, hopelessness, worry, and difficulty concentrating.
  • Symptoms cause significant distress or impairment in social, occupational, or other important areas of functioning.
  • Symptoms do not meet the criteria for another mental disorder and are not merely an exacerbation of a pre-existing mental disorder.
  • Symptoms resolve within six months after the stressor or its consequences have terminated.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the specific stressor that triggered the adjustment disorder.
  • Use precise terminology such as 'mixed anxiety and depressed mood' in the medical record.
  • Include examples of symptoms experienced by the patient, such as anxiety, sadness, or difficulty sleeping.
  • Document medical necessity for treatment, including the impact of symptoms on daily functioning.
  • Ensure quality measures are documented, such as patient-reported outcomes or symptom severity scales.

Coding Guidelines

Usage Guidelines & Examples

  • Use this diagnosis code when a patient presents with symptoms of anxiety and depression in response to a specific stressor.
  • Do not use this code if the symptoms are better explained by another mental health disorder, such as Major Depressive Disorder or Generalized Anxiety Disorder.
  • Similar codes include F43.20 (Adjustment disorder, unspecified) and F43.21 (Adjustment disorder with depressed mood).
  • Common coding errors include misidentifying the primary stressor or failing to document the impact on functioning.
  • In complex cases, consider the patient's history and other comorbid conditions to ensure accurate code selection.

Code Exclusions

Important Exclusions

  • Excludes conditions such as F32 (Major depressive disorder) and F41 (Anxiety disorders) when symptoms are more severe or chronic.
  • Alternative codes for excluded conditions include F32.9 (Major depressive disorder, single episode, unspecified) for major depression.
  • Conditions are excluded to ensure accurate diagnosis and treatment planning, as they require different management strategies.
  • Common exclusion mistakes include misdiagnosing adjustment disorder when symptoms are chronic or severe.
  • Related but distinct conditions include post-traumatic stress disorder (PTSD) and other anxiety disorders.

Related ICD-10 Codes

Primary Codes
F43.23
Adjustment disorder with mixed anxiety and depressed mood
F43.20
Adjustment disorder, unspecified
Ancillary Codes
Z63.5
Z56.9
Differential Codes
F43.21
F43.21
if depressive symptoms predominate.
F43.22
F43.22
if anxiety symptoms predominate.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Psychiatry

Specialty Applications

  • This diagnosis applies to individuals experiencing significant emotional distress due to life changes such as loss of a loved one, job loss, or major life transitions.
  • Patient populations include adolescents and adults, particularly those with limited coping mechanisms or prior mental health issues.
  • Clinical settings include outpatient mental health clinics, inpatient psychiatric units, and emergency departments.
  • Specialty-specific applications are relevant in psychiatry, psychology, and primary care settings.
  • Treatment contexts include psychotherapy, medication management, and support groups.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with adjustment disorder with mixed anxiety and depressed mood based on clinical findings of anxiety and depressive symptoms.'

Template 2

Template: 'Clinical presentation consistent with adjustment disorder including symptoms of anxiety and sadness.'

Template 3

Template: 'Diagnostic criteria for adjustment disorder met as evidenced by significant distress following a recent stressor.'

Template 4

Template: 'Treatment plan initiated for adjustment disorder with mixed anxiety and depressed mood including cognitive behavioral therapy.'

Template 5

Template: 'Follow-up care for adjustment disorder including monitoring of anxiety and mood symptoms.'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Documentation must include the specific stressor, symptoms experienced, and their impact on functioning.

How does this differ from similar diagnoses?

Adjustment disorder is specifically tied to identifiable stressors, while other disorders may not have such clear triggers.

What are common billing considerations?

Ensure that the diagnosis is clearly linked to the treatment provided to optimize reimbursement.

What procedures are typically associated?

Commonly associated procedures include psychotherapy sessions and medication management.

Are there any quality reporting implications?

Quality measures may include symptom severity assessments and patient satisfaction surveys.