ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesF45.20

F45.20

Billable

Hypochondriacal disorder, unspecified

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

Code Description

ICD-10 F45.20 is a billable code used to indicate a diagnosis of hypochondriacal disorder, unspecified.

Key Diagnostic Point:

Hypochondriacal disorder, also known as illness anxiety disorder, is characterized by an excessive preoccupation with having or acquiring a serious illness. Patients often misinterpret bodily sensations or minor symptoms as indicative of severe medical conditions, leading to significant distress and impairment in daily functioning. This disorder can manifest in various ways, including frequent medical consultations, extensive health-related research, and avoidance of situations perceived as risky to health. The condition is often associated with anxiety disorders, where the individual may experience heightened anxiety levels, leading to compulsive behaviors aimed at alleviating their fears. The diagnosis of hypochondriacal disorder is made when the preoccupation persists for at least six months, despite medical reassurance. It is essential to differentiate this disorder from other anxiety-related conditions, such as generalized anxiety disorder (GAD) or obsessive-compulsive disorder (OCD), as treatment approaches may vary. Cognitive-behavioral therapy (CBT) is commonly employed to help patients manage their anxiety and reduce maladaptive health-related behaviors.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Overlap with other anxiety disorders
  • Need for thorough patient history
  • Potential for comorbid conditions
  • Variability in symptom presentation

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to note duration of symptoms
  • Misdiagnosis with other anxiety disorders
  • Lack of evidence for medical evaluations

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Comprehensive mental health evaluations, including patient history and symptom duration.

Common Clinical Scenarios

Patients presenting with anxiety about health despite negative medical evaluations.

Billing Considerations

Consideration of comorbid anxiety disorders and the impact of psychosocial factors.

Primary Care

Documentation Requirements

Detailed records of patient visits, including assessments and referrals to mental health specialists.

Common Clinical Scenarios

Patients frequently seeking reassurance about health concerns.

Billing Considerations

Coordination with mental health professionals for integrated care.

Coding Guidelines

Inclusion Criteria

Use F45.20 When
  • According to ICD
  • 10 guidelines, F45
  • 20 should be used when the hypochondriacal disorder is not specified further
  • It is essential to document the patient's symptoms, duration, and any previous evaluations to support the diagnosis

Exclusion Criteria

Do NOT use F45.20 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 health anxiety.

Documentation Requirements

Document the focus of therapy and progress notes.

Specialty Considerations

Psychiatrists should note the specific health concerns discussed.

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 hypochondriacal disorder. This specificity aids in better tracking of treatment outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mental health disorders, including hypochondriacal disorder. This specificity aids in better tracking of treatment outcomes and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mental health disorders, including hypochondriacal disorder. This specificity aids in better tracking of treatment outcomes and resource allocation.

Resources

Clinical References

  • •
    American Psychiatric Association - DSM-5

Coding & Billing References

  • •
    American Psychiatric Association - DSM-5

Frequently Asked Questions

What is the difference between hypochondriacal disorder and somatic symptom disorder?

Hypochondriacal disorder focuses on the fear of having a serious illness without significant physical symptoms, while somatic symptom disorder involves actual physical symptoms that cause distress.