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ICD-10 Guide
ICD-10 CodesF45.42

F45.42

Billable

Pain disorder with related psychological factors

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

Code Description

ICD-10 F45.42 is a billable code used to indicate a diagnosis of pain disorder with related psychological factors.

Key Diagnostic Point:

Pain disorder with related psychological factors is characterized by the presence of significant pain that is influenced by psychological factors. This condition often manifests in patients who experience chronic pain, where psychological issues such as anxiety, depression, or stress exacerbate the perception of pain. The pain may not have a clear physiological cause, or it may be disproportionate to any identifiable medical condition. Patients may also exhibit symptoms of anxiety disorders, PTSD, OCD, or specific phobias, which can complicate the clinical picture. Effective management often requires a multidisciplinary approach, including psychological therapy, medication, and pain management techniques. Understanding the interplay between psychological factors and pain perception is crucial for accurate diagnosis and treatment, as well as for appropriate coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between psychological and physiological causes of pain
  • Need for comprehensive documentation of psychological assessments
  • Variability in patient presentations and symptomatology
  • Potential overlap with other mental health diagnoses

Audit Risk Factors

  • Inadequate documentation of psychological assessments
  • Failure to link pain symptoms to psychological factors
  • Misclassification of pain as purely physical
  • Lack of evidence for the treatment plan

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed psychological evaluations, treatment plans, and progress notes.

Common Clinical Scenarios

Patients with chronic pain who also exhibit anxiety or depressive symptoms.

Billing Considerations

Ensure that psychological factors are clearly documented as contributing to the pain experience.

Pain Management

Documentation Requirements

Comprehensive pain assessments, including psychological evaluations and treatment responses.

Common Clinical Scenarios

Patients undergoing interventional pain management who have psychological comorbidities.

Billing Considerations

Document the multidisciplinary approach to treatment, including psychological interventions.

Coding Guidelines

Inclusion Criteria

Use F45.42 When
  • According to ICD
  • 10 guidelines, F45
  • 42 should be used when pain is significantly influenced by psychological factors
  • Documentation must support the diagnosis, including evidence of psychological evaluation and treatment

Exclusion Criteria

Do NOT use F45.42 When
  • Exclusion criteria include pain disorders that are solely attributable to a medical condition

Related ICD-10 Codes

Related CPT Codes

90834CPT Code

Psychotherapy, 45 minutes with patient

Clinical Scenario

Used for patients receiving therapy for pain management related to psychological factors.

Documentation Requirements

Document the duration of therapy and the focus on pain management.

Specialty Considerations

Psychiatrists and psychologists should ensure that the therapy is clearly linked to the pain disorder.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of pain disorders, enabling better tracking of conditions influenced by psychological factors. This specificity aids in treatment planning and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of pain disorders, enabling better tracking of conditions influenced by psychological factors. This specificity aids in treatment planning and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 is the primary focus of treatment for F45.42?

The primary focus of treatment for F45.42 is to address both the psychological factors contributing to the pain and the pain itself. This often involves a combination of psychotherapy, medication, and pain management strategies.