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ICD-10 Guide
ICD-10 CodesF45.8

F45.8

Billable

Other somatoform disorders

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

Code Description

ICD-10 F45.8 is a billable code used to indicate a diagnosis of other somatoform disorders.

Key Diagnostic Point:

F45.8 encompasses a range of somatoform disorders that are characterized by physical symptoms that cannot be fully explained by a medical condition. These disorders often manifest as significant distress or impairment in social, occupational, or other important areas of functioning. Patients may present with complaints such as chronic pain, gastrointestinal issues, or neurological symptoms, which are not attributable to any identifiable medical condition. The psychological component is crucial, as these symptoms are often linked to underlying anxiety disorders, PTSD, OCD, or phobias. The diagnosis requires a thorough evaluation to rule out other medical conditions and to assess the psychological factors contributing to the symptoms. Treatment typically involves a multidisciplinary approach, including psychotherapy, cognitive-behavioral therapy, and sometimes pharmacotherapy to manage anxiety or depressive symptoms. Understanding the interplay between psychological and physical symptoms is essential for effective management and coding of these disorders.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of symptoms that can mimic other medical conditions
  • Need for comprehensive psychological evaluation
  • Potential overlap with anxiety disorders and other mental health conditions
  • Documentation must clearly differentiate from other somatic disorders

Audit Risk Factors

  • Inadequate documentation of psychological evaluation
  • Misdiagnosis due to overlapping symptoms with other disorders
  • Failure to document the impact on daily functioning
  • Lack of clear treatment plans or follow-up

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed psychological assessments, treatment plans, and progress notes.

Common Clinical Scenarios

Patients presenting with unexplained physical symptoms, anxiety, or mood disorders.

Billing Considerations

Ensure that psychological evaluations are comprehensive and document the relationship between physical symptoms and psychological factors.

Primary Care

Documentation Requirements

Thorough history and physical examination, including mental health assessments.

Common Clinical Scenarios

Patients with chronic pain or fatigue without clear medical causes.

Billing Considerations

Document any referrals to mental health specialists and the rationale for the diagnosis.

Coding Guidelines

Inclusion Criteria

Use F45.8 When
  • According to ICD
  • 10 guidelines, F45
  • 8 should be used when the somatoform disorder does not fit into more specific categories
  • It is essential to document the absence of a medical explanation for the symptoms and the psychological assessment findings

Exclusion Criteria

Do NOT use F45.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient

Clinical Scenario

Used for patients diagnosed with somatoform disorders requiring therapy.

Documentation Requirements

Document the nature of the therapy and the patient's progress.

Specialty Considerations

Psychiatrists should ensure that the therapy aligns with the diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of somatoform disorders, improving the ability to capture the complexity of these conditions and their psychological components.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of somatoform disorders, improving the ability to capture the complexity of these conditions and their psychological components.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of somatoform disorders, improving the ability to capture the complexity of these conditions and their psychological components.

Resources

Clinical References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders

Coding & Billing References

  • •
    American Psychiatric Association - Diagnostic and Statistical Manual of Mental Disorders

Frequently Asked Questions

What are the key symptoms of other somatoform disorders?

Key symptoms include unexplained physical complaints, significant distress or impairment in functioning, and a lack of medical explanation for the symptoms. Psychological factors often play a crucial role.