Psychological and Behavioural Factors Associated with Disorders or Diseases Classified Elsewhere (F54)
DSM-5-TR: Psychological Factors Affecting Other Medical Conditions
ICD-10-AM and DSM-5-TR may classify conditions differently. Refer to APA and WHO for complete diagnostic criteria.
Key Facts
ICD-10 Range
F50-F59
Overview
This category should be used to record the presence of psychological or behavioural influences thought to have played a major part in the aetiology of physical disorders classifiable to other chapters. The resulting physical disorders are usually mild but occasionally severe and chronic.
Classification Boundaries
Includes
- Psychological factors affecting physical conditions
- Examples: asthma (F54 + J45), dermatitis (F54 + L23-L25), gastric ulcer (F54 + K25), ulcerative colitis (F54 + K51), urticaria (F54 + L50)
Excludes1 (coded elsewhere)
- Tension-type headache (G44.2)
Australian Clinical Context
Commonly encountered in Australian general practice and liaison psychiatry settings. The biopsychosocial model is well-established in Australian medical practice.
Medicare (MBS) Pathways
Better Access to Mental Health Care
The primary Medicare pathway for mental health treatment in Australia. Requires a GP Mental Health Treatment Plan (MHTP) referral. Available for any clinically diagnosed mental disorder.
| Provider Type | MBS Items | Session Type |
|---|---|---|
| Clinical Psychologist | 80000–80025 | Psychological therapy (higher rebate) |
| Registered Psychologist | 80100–80123 | Focused psychological strategies |
| Occupational Therapist | 80125–80145 | Focused psychological strategies |
| Social Worker | 80150–80175 | Focused psychological strategies |
| Psychiatrist | 291, 296–299, 300–308 | Psychiatric consultation |
Clinical Psychologist
Registered Psychologist
Occupational Therapist
Social Worker
GP referral items: 2700, 2701, 2715, 2717
Eligibility: Any clinically diagnosed mental disorder as defined by WHO ICD-10 Chapter V. Requires a GP or psychiatrist referral.
Exclusions:
- Intellectual disability (use Complex Neurodevelopmental Disorder pathway or specialist referral)
- Dementia and organic mental disorders (use specialist referral pathway)
- Tobacco use disorder
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Reference information sourced from MBS Online (mbsonline.gov.au). Item availability, rebates, and eligibility criteria may change. This is not billing advice — always verify current items before claiming. Last verified: April 2026.
Clinical Documentation Notes
Code the physical condition first, then F54 as an additional code. Document the specific psychological factors involved.
Related Diagnostic Codes
ICD-10-AM diagnostic codes commonly associated with the Psychological and Behavioural Factors Associated with Disorders or Diseases Classified Elsewhere (F54).
References
- World Health Organization. ICD-10-AM.
- American Psychiatric Association. DSM-5-TR. 2022.
Clinical Scoring Calculator — Not a Diagnostic Tool
This tool calculates scores based on published guidelines for professional reference. It does not provide clinical diagnoses. Scores are provided as reference information only and should be interpreted by a qualified practitioner in the context of a comprehensive assessment.
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