Other Neurotic Disorders (F48)
DSM-5-TR: Somatic Symptom and Related Disorders / Other Specified Anxiety Disorder
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
F40-F48
Subcodes
4 subcodes
Australian Prevalence
Depersonalisation-derealisation disorder affects approximately 1-2% of the population. Neurasthenia is rarely diagnosed in Australian practice.
Global Prevalence
Neurasthenia remains a common diagnosis in some Asian countries. Depersonalisation-derealisation disorder prevalence approximately 1-2% globally.
Overview
A group of disorders with historical associations to the neurosis concept, including neurasthenia (chronic fatigue syndrome of psychological origin) and depersonalisation-derealisation syndrome.
ICD-10-AM Subcodes
| Code | Name | Description |
|---|---|---|
| F48.0 | Neurasthenia | |
| F48.1 | Depersonalisation-derealisation syndrome | |
| F48.8 | Other specified neurotic disorders | |
| F48.9 | Neurotic disorder, unspecified |
Classification Boundaries
Includes
- Neurasthenia
- Fatigue syndrome
- Depersonalisation-derealisation syndrome
- Dhat syndrome
- Occupational neurosis
Excludes1 (coded elsewhere)
- Chronic fatigue syndrome (G93.3)
- Asthenia NOS (R53)
- Psychasthenia (F48.8)
Excludes2 (may co-occur)
- Burn-out (Z73.0)
- Post-viral fatigue syndrome (G93.3)
Australian Clinical Context
Neurasthenia (F48.0) is rarely used as a primary diagnosis in Australian practice. Chronic fatigue presentations are more commonly coded under G93.3 (chronic fatigue syndrome). Depersonalisation-derealisation disorder is increasingly recognised in Australian clinical 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
Automate MBS item capture from your sessions
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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
DSM-5-TR classifies depersonalisation/derealisation as a dissociative disorder. Neurasthenia is not included in DSM-5-TR. Document the specific symptoms, their impact on functioning, and any precipitating factors.
Related Diagnostic Codes
ICD-10-AM diagnostic codes commonly associated with the Other Neurotic Disorders (F48).
References
- World Health Organization. ICD-10-AM.
- American Psychiatric Association. DSM-5-TR. 2022.
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