What is the difference between adjustment disorder and major depression?

Adjustment disorder requires an identifiable stressor, develops within 3 months of it, causes distress or impairment disproportionate to the stressor, and resolves within 6 months of the stressor ceasing. Major depressive disorder is diagnosed when 5 or more DSM-5 criteria are met for 2 or more weeks — crucially, a stressor is not required and the condition is not dependent on external circumstances. The distinction matters because adjustment disorder does not warrant antidepressant treatment unless MDD criteria are independently met. If symptoms persist beyond 6 months after stressor cessation, re-evaluate toward MDD, persistent depressive disorder, or prolonged grief disorder.

Should sleeping tablets or sedatives be prescribed for adjustment disorder?

Short-term hypnotics — zolpidem 5–10 mg or temazepam 10 mg for up to 2 weeks — can bridge severe insomnia during an adjustment disorder episode. Long-term benzodiazepines should be avoided: they carry significant dependence risk, are monitored via SafeScript in all Australian states and territories, and alprazolam has been Schedule 8 since 2014. For acute stress disorder specifically, avoid routine benzodiazepine prescription — evidence suggests this may worsen PTSD outcomes by impairing fear extinction. Propranolol can be considered for severe somatic anxiety. Review at 2 weeks and taper or cease hypnotics as distress settles.

What is psychological first aid and when should it be used?

Psychological first aid (PFA) is a structured early response to trauma endorsed by Phoenix Australia's Australian Guidelines for ASD and PTSD. PFA addresses 5 domains: safety, calming, connectedness, self-efficacy, and hope. It involves practical support, addressing immediate needs, reducing acute distress, connecting the person with social supports, and providing information about normal stress reactions. PFA does not involve re-telling the traumatic narrative. It is appropriate in the first hours to days after trauma. Single-session psychological debriefing — structured formal retelling of the traumatic event — is explicitly not recommended by Phoenix Australia and Cochrane review evidence suggests it may be harmful.

When does acute stress disorder become PTSD and what should I do?

Acute stress disorder is diagnosed when trauma-related symptoms — intrusion, negative mood, dissociation, avoidance, arousal — persist from 3 days to 1 month after a traumatic event. When the same symptom cluster persists beyond 1 month, the diagnosis becomes PTSD. Not all ASD progresses to PTSD — many people recover spontaneously. Early psychological intervention, particularly trauma-focused CBT, for patients with significant ASD symptoms may reduce PTSD development. Schedule a review at the 1-month mark to formally reassess; if PTSD criteria are met, refer to a psychologist or psychiatrist trained in trauma-focused therapies per Phoenix Australia guidelines.

How do I bill a Mental Health Care Plan for adjustment disorder in general practice?

GPs can prepare a Mental Health Care Plan using MBS items 2700 or 2715 for any patient with a diagnosable mental disorder, including adjustment disorder. This provides access to up to 10 individual and 10 group Better Access psychology sessions per calendar year. GPs with Focused Psychological Strategies training can also deliver brief psychological therapy themselves using items 2721 to 2727. The GPCCMP (items 965/967, replacing CDM from July 2025) does not apply to adjustment disorder alone — it requires a coexisting chronic condition. For veterans, DVA Non-Liability mental health coverage applies since 2017 regardless of service-related connection.

Adjustment disorder / Acute stress disorder

Adjustment disorder and acute stress: the Australian general practice approach

By Dr HB Lo, FACRRM Reviewed 26 June 2026 11 min read

Adjustment disorder — emotional or behavioural symptoms within 3 months of an identifiable stressor, causing disproportionate distress or impairment — is among the most common mental health presentations in Australian general practice.

Psychological approaches are first-line: psychoeducation, practical stressor-addressing, and brief CBT via Better Access. Antidepressants are not warranted unless major depressive episode criteria are independently met. Short-term hypnotics can bridge severe insomnia.

For acute stress disorder, psychological first aid is preferred over single-session debriefing, which evidence suggests may be harmful. Monitor for PTSD if symptoms persist beyond 1 month.

Adjustment disorder is one of the most common mental health diagnoses in general practice, yet it is also one of the most frequently either over-treated with antidepressants or under-recognised when suicidality is present. AIHW Suicide and Self-Harm Monitoring data show that adjustment disorder is significantly associated with completed suicide — the condition is not trivially mild, and every presentation requires a structured risk assessment.

The management model, per Phoenix Australia’s Australian Guidelines and RANZCP Mood and Anxiety CPGs, places psychological approaches first and pharmacotherapy in a supporting role. The GP’s role is central: psychoeducation, practical stressor problem-solving, brief psychological therapy, and monitoring for diagnostic evolution toward major depressive disorder, PTSD, or generalised anxiety disorder.

A. Core clinical — the AU general-practice framework

Definition and classification

Adjustment disorder (DSM-5, F43.2):

Emotional or behavioural symptoms developing within 3 months of an identifiable psychosocial stressor
Significant distress or functional impairment out of proportion to the stressor’s expected severity or cultural context
Does not meet criteria for another psychiatric disorder; not a normal grief response
Symptoms resolve within 6 months of stressor cessation
Subtypes: depressed mood; anxiety; mixed anxious-depressed; conduct disturbance; mixed emotions-conduct; unspecified

Acute stress disorder (DSM-5, F43.0):

Exposure to actual or threatened death, serious injury, or sexual violation (Criterion A)
Symptoms from 3 days to 1 month after the traumatic event
At least 9 symptoms across 5 clusters: intrusion (memories, dreams, flashbacks, distress at cues, physiological reactivity); negative mood (inability to experience positive emotions); dissociation (altered reality, amnesia); avoidance (of internal or external reminders); arousal (sleep disturbance, irritability, hypervigilance, exaggerated startle, concentration impairment)
Significant distress or functional impairment

If ASD symptoms persist beyond 1 month — reassess for PTSD (or Complex PTSD where developmental or repeated trauma is the context) per Phoenix Australia 2020/2021 Guidelines.

Epidemiology

Adjustment disorder is common in general practice — prevalence estimates range from 5 to 20% of mental health presentations depending on the setting. It is more prevalent after disaster, serious illness, divorce or separation, bereavement, job loss, immigration stress, and domestic violence. It is simultaneously over-diagnosed (mild normal stress responses labelled as disorder) and under-diagnosed (presentations concealing suicidality or evolving to MDD or PTSD without re-assessment). A significant proportion of completed suicides in Australia involve adjustment disorder, per AIHW monitoring data.

History

Stressor identification: life events, relationships, work, finances, health, legal, immigration, bereavement, domestic violence
Symptom onset and temporal relation to stressor: within 3 months?
Symptom domains: mood (low, tearful, hopeless); anxiety (worry, tension, panic); sleep; appetite; function (work, relationships, self-care)
Suicidality and self-harm: structured risk assessment at every presentation — adjustment disorder carries meaningful completed suicide risk; do not defer to the next visit
Coping strategies: adaptive (problem-solving, exercise, social support) vs maladaptive (alcohol, avoidance, withdrawal)
Substance use: escalation is common and often missed
Past psychiatric history: prior episodes, treatment response, trauma history
Social supports: family, friends, community, religious or cultural networks
Yellow flags: ongoing or escalating stressor; low social support; previous suicide attempt; substance comorbidity; domestic violence

Mental state examination

Appearance, behaviour, speech, mood and affect, thought content and form, perception, cognition, insight, judgement
Structured suicide risk assessment — document explicitly regardless of apparent severity

Investigations

Adjustment disorder is a clinical diagnosis. Investigations are selective and aimed at excluding organic mimics:

Validated rating scales: K10, DASS-21, PHQ-9, GAD-7 at baseline and each review
Bloods (only if organic mimic suspected): TSH 66716, FBC 65070, B12 66610, vitamin D 66608, UEC 66500 — hypothyroidism, anaemia, and B12 deficiency can closely mimic depressive adjustment

Differential diagnoses

Condition	Discriminator
Adjustment disorder	Stressor required; onset within 3 months; resolves within 6 months of cessation; below threshold for MDD/GAD/PTSD
Major depressive disorder	≥5 DSM-5 symptoms for ≥2 weeks; stressor not required
Generalised anxiety disorder	≥6 months of excessive worry across multiple domains
Acute stress disorder	Criterion A trauma; 3 days to 1 month; ≥9 symptoms across 5 clusters
PTSD	Criterion A trauma; symptoms >1 month; full DSM-5 criteria met
Prolonged grief disorder	Bereavement; impairing preoccupation with loss persisting >12 months
Substance-induced mood/anxiety disorder	Substance use temporally precedes and drives symptoms

Management — adjustment disorder

Per Phoenix Australia, RANZCP Mood CPG, and eTG Psychotropic:

1. Psychoeducation — explain the stress-response model: what the person is experiencing is a normal human reaction to a difficult situation; symptoms are expected to improve as the stressor resolves or as coping strategies are established; the diagnosis is not a lifetime label.

2. Address the stressor practically — problem-solving counselling; connect with financial counselling, legal aid, housing services, workplace employee assistance programme (EAP), relationships counselling, or bereavement support as relevant. A letter of support for work or legal processes may reduce stressor intensity directly.

3. Mobilise social supports — family, peer supports, community organisations, religious or cultural community. Social connection is among the most powerful moderators of stress response.

4. Lifestyle foundations:

Sleep hygiene and brief CBT-i elements — consistent wake time, stimulus control, limit alcohol (which fragments sleep architecture despite its perceived sedating effect)
Regular aerobic exercise — ≥150 min per week moderate-intensity; evidence for mood and stress buffering
Alcohol moderation — address explicitly; alcohol is a common maladaptive coping mechanism in adjustment disorder
Social engagement — counter isolation actively

5. Brief psychological therapy — problem-solving therapy, brief CBT, and supportive counselling via Better Access psychology if symptoms persist beyond 2–4 weeks or are severe from onset. Self-help options: This Way Up, MindSpot, MoodGYM for mild presentations.

6. Pharmacotherapy — generally NOT first-line:

Avoid antidepressants unless MDD criteria are independently met
Avoid long-term benzodiazepines — dependence risk, SafeScript monitored
Short-term hypnotic (zolpidem 5–10 mg or temazepam 10 mg) for severe insomnia — maximum 2 weeks per eTG Psychotropic; caution in older adults; no driving the morning after
Propranolol for severe somatic anxiety or performance-related anxiety

7. Review and monitoring — at 2 weeks, then 4 weeks; sooner if elevated risk. Re-administer K10 / PHQ-9 / GAD-7 at each review. Re-evaluate diagnosis at 4–6 weeks if not improving — reconsider MDD, GAD, PTSD.

B. Evidence appraisal — what works and what to avoid

Psychological therapy: first-line with good evidence

Problem-solving therapy and brief CBT are effective for adjustment disorder across randomised controlled trial data. Better Access psychology via Mental Health Care Plan gives structured access to up to 10 individual sessions per calendar year. This Way Up and MindSpot provide well-validated Australian digital CBT programs at minimal cost — appropriate for mild presentations or while waiting for psychology appointment availability.

Goyal et al. (JAMA Intern Med 2014) meta-analysis showed mindfulness-based stress reduction programs produce significant reductions in anxiety, depression, and stress — a useful adjunct that does not require professional delivery.

Antidepressants: no benefit without MDD criteria

No randomised controlled trial evidence supports antidepressant prescribing for adjustment disorder in the absence of MDD criteria. The risk of medicalising a self-limiting condition, creating long-term antidepressant dependency, and exposing the patient to side effects outweighs any unproven benefit. If MDD criteria are met at any point during the episode, reclassify and manage accordingly.

Benzodiazepines post-trauma: active harm possible

Guina et al. (J Psychiatr Pract 2015) systematic review and meta-analysis found benzodiazepine use following trauma is associated with worse PTSD outcomes. The proposed mechanism is interference with fear extinction — benzodiazepines blunt the autonomic response during trauma processing, disrupting the consolidation of safety memories. The Phoenix Australia Guidelines explicitly recommend against routine post-trauma benzodiazepine prescription.

Single-session debriefing: do not use

Rose et al. Cochrane 2002 — the definitive systematic review — found no evidence that single-session psychological debriefing prevents PTSD and some suggestion of harm in high-distress subgroups. Phoenix Australia’s guidelines do not endorse debriefing. Psychological first aid — which is supportive, practical, and does not involve retelling the trauma narrative — is the appropriate early intervention.

C. Acute stress disorder — specific management

Acute stress disorder (ASD) shares the requirement of Criterion A trauma exposure but has a distinct management pathway from adjustment disorder.

Psychological first aid

Phoenix Australia (2020/2021) recommends psychological first aid as the standard early response. The five domains: safety (practical safety needs), calming (immediate distress reduction techniques), connectedness (linking with family, community, or professional support), self-efficacy (building confidence in own coping capacity), and hope (realistic but positive framing of expected recovery).

This is not therapy — it does not involve exploring or processing the traumatic experience. It is practical, supportive, and brief.

Trauma-focused CBT for significant symptoms

For those with significant ASD symptoms (not all ASD presentations), early referral to a trauma-focused CBT-trained psychologist may reduce the risk of progression to PTSD. Phoenix Australia maintains a provider directory of trauma-trained clinicians. EMDR (eye movement desensitisation and reprocessing) is a second-line trauma-focused option in adults.

Monitoring for PTSD development

Schedule a formal review at 1 month. Administer the K10 and a trauma symptom screen (PCL-5 or IES-R). If symptoms meet PTSD criteria — intrusion, avoidance, negative cognitions, hyperarousal persisting beyond 1 month with significant distress or impairment — initiate the PTSD management pathway: refer to trauma-focused psychology (TF-CBT or EMDR first-line); consider SSRI if psychological therapy is unavailable or insufficient.

What not to do in ASD

Do not conduct single-session debriefing
Do not prescribe benzodiazepines routinely
Do not wait more than 1 month to formally reassess for PTSD
Do not prescribe antidepressants unless comorbid MDD or anxiety disorder criteria are met

D. Australian operations

MBS (via MBS Online):

Standard consults: 3 / 23 / 36 / 44
MHCP preparation: 2700 / 2715; review: 2712; extended with mental health professional: 2701 / 2717
Better Access psychological therapy: 10 individual + 10 group sessions per calendar year; items vary by provider type
Focused Psychological Strategies (GP-delivered, requires FPS training): 2721 / 2723 / 2725 / 2727
GPCCMP: 965 (preparation) / 967 (review) — adjustment disorder alone does not qualify (acute, expected to resolve within 6 months); only applicable if a chronic comorbidity coexists
ATSI Health Assessment: 715 (includes mental health screening)
Telehealth: 91790 / 92029 / 92060 (existing-relationship 12-month rule)
Practice nurse: 10997

PBS (via pbs.gov.au):

SSRIs (sertraline, escitalopram, fluoxetine, citalopram, paroxetine) — General Schedule; only prescribe if MDD or anxiety disorder criteria met
Zolpidem, temazepam, zopiclone — General Schedule; quantity and repeat limits; SafeScript monitored in all states
Benzodiazepines (diazepam, oxazepam, lorazepam) — General Schedule; SafeScript monitored; alprazolam Schedule 8 since 2014
Propranolol — General Schedule

DVA and veterans’ pathways: DVA Non-Liability Health Care for mental health has applied since 2017 — eligible veterans receive treatment regardless of service-related connection. Open Arms (1800 011 046) provides free counselling and group programs for veterans and their families; available alongside GP-coordinated care.

Workers’ compensation and TAC: work-related stress causing adjustment disorder is a compensable claim in all states. MVA-related ASD falls under TAC (Victoria) or equivalent state motor accident schemes. Document stressor carefully; workers’ comp paperwork may be required. Refer to occupational physician for complex workplace presentations.

Medico-legal and mandatory notification flags:

Suicidality: document the suicide risk assessment explicitly at every visit — adjustment disorder carries completed suicide risk
Domestic violence: document, safety plan; mandatory reporting applies for children at risk in all Australian states and territories
Mandatory AHPRA notification: if the patient is a health practitioner whose impairment from adjustment disorder poses risk to the public, mandatory notification obligations apply
Capacity: formal capacity assessment if clinical concern arises regarding decision-making ability

E. Special populations

Older adults. Adjustment disorder in older adults more commonly presents with somatic symptoms (fatigue, appetite change, unexplained pain) than classical depressed mood. Bereavement is a common stressor — distinguish normal grief from pathological adjustment or prolonged grief disorder. Avoid benzodiazepines and high-dose hypnotics — falls risk, cognitive effects, respiratory depression. Consider age-related social isolation as a stressor amplifier.

Adolescents and young adults. Adjustment disorder in adolescents often centres on school or peer stressors. Involve the family (with the young person’s consent) in support planning. Screen explicitly for self-harm — prevalence in this age group is high. headspace provides free or low-cost youth mental health services in many Australian communities. eheadspace and the headspace app support digital access.

Perinatal and postnatal period. Adjustment disorder in pregnancy or the postnatal period overlaps with perinatal anxiety and depression — careful diagnostic distinction is needed. The Edinburgh Postnatal Depression Scale (EPDS) is validated for perinatal screening. Involve a midwife or maternal child health nurse in the care coordination.

First Nations Australians. ATSI Health Assessment (MBS 715) provides structured mental health screening. Grief and Loss in Aboriginal and Torres Strait Islander communities often presents as collective or cumulative grief rather than individual stressor-linked adjustment — cultural respect and community connection are integral to care. 13YARN (13 92 76) provides 24/7 crisis support by trained Aboriginal counsellors.

Veterans and first responders. Veterans presenting with apparent adjustment disorder after service events should be assessed carefully for PTSD — ASD and adjustment disorder may be the initial presentation. Open Arms and Phoenix Australia’s provider directory are the specialist pathways. Do not delay trauma-focused therapy referral in this group.

When to escalate

Refer or escalate when:

Urgent (same-day or ED): acute suicide risk with means and intent; severe agitation or psychotic features; domestic violence with immediate safety concern
Same-week:
- Suspected major depressive disorder, PTSD, or generalised anxiety disorder with significant impairment — psychology and/or psychiatry
- Complex trauma history or complex PTSD features — specialist trauma service
- Severe substance use comorbidity — dual-diagnosis specialist
Routine:
- Persistent symptoms beyond 4–6 weeks despite psychological and lifestyle intervention — psychology via MHCP
- Refractory to Better Access psychology — psychiatry review
- Complex psychosocial circumstances requiring case conferencing (MBS 132/133)
- Veterans — Open Arms parallel enrolment

What this article is and is not

This is general health information drawn from current Australian clinical guidelines — Phoenix Australia’s PTSD and ASD Guidelines (2020/2021), RANZCP Anxiety and Mood CPGs, Therapeutic Guidelines (eTG) Psychotropic, and Australian Medicines Handbook. It is not personal medical advice and does not create a doctor–patient relationship. Mental health management decisions are made in partnership with your GP, psychologist, and treating clinicians.

For consumer-facing resources: HealthDirect — Stress, Beyond Blue, Head to Health, This Way Up, MindSpot.

For immediate support: Lifeline 13 11 14, Beyond Blue 1300 22 4636, 1800RESPECT 1800 737 732, MensLine 1300 78 99 78, 13YARN 13 92 76.

Sources cited

Frequently asked questions

What is the difference between adjustment disorder and major depression?

Adjustment disorder requires an identifiable stressor, develops within 3 months of it, causes distress or impairment disproportionate to the stressor, and resolves within 6 months of the stressor ceasing. Major depressive disorder is diagnosed when 5 or more DSM-5 criteria are met for 2 or more weeks — crucially, a stressor is not required and the condition is not dependent on external circumstances. The distinction matters because adjustment disorder does not warrant antidepressant treatment unless MDD criteria are independently met. If symptoms persist beyond 6 months after stressor cessation, re-evaluate toward MDD, persistent depressive disorder, or prolonged grief disorder.
Should sleeping tablets or sedatives be prescribed for adjustment disorder?

Short-term hypnotics — zolpidem 5–10 mg or temazepam 10 mg for up to 2 weeks — can bridge severe insomnia during an adjustment disorder episode. Long-term benzodiazepines should be avoided: they carry significant dependence risk, are monitored via SafeScript in all Australian states and territories, and alprazolam has been Schedule 8 since 2014. For acute stress disorder specifically, avoid routine benzodiazepine prescription — evidence suggests this may worsen PTSD outcomes by impairing fear extinction. Propranolol can be considered for severe somatic anxiety. Review at 2 weeks and taper or cease hypnotics as distress settles.
What is psychological first aid and when should it be used?

Psychological first aid (PFA) is a structured early response to trauma endorsed by Phoenix Australia's Australian Guidelines for ASD and PTSD. PFA addresses 5 domains: safety, calming, connectedness, self-efficacy, and hope. It involves practical support, addressing immediate needs, reducing acute distress, connecting the person with social supports, and providing information about normal stress reactions. PFA does not involve re-telling the traumatic narrative. It is appropriate in the first hours to days after trauma. Single-session psychological debriefing — structured formal retelling of the traumatic event — is explicitly not recommended by Phoenix Australia and Cochrane review evidence suggests it may be harmful.
When does acute stress disorder become PTSD and what should I do?

Acute stress disorder is diagnosed when trauma-related symptoms — intrusion, negative mood, dissociation, avoidance, arousal — persist from 3 days to 1 month after a traumatic event. When the same symptom cluster persists beyond 1 month, the diagnosis becomes PTSD. Not all ASD progresses to PTSD — many people recover spontaneously. Early psychological intervention, particularly trauma-focused CBT, for patients with significant ASD symptoms may reduce PTSD development. Schedule a review at the 1-month mark to formally reassess; if PTSD criteria are met, refer to a psychologist or psychiatrist trained in trauma-focused therapies per Phoenix Australia guidelines.
How do I bill a Mental Health Care Plan for adjustment disorder in general practice?

GPs can prepare a Mental Health Care Plan using MBS items 2700 or 2715 for any patient with a diagnosable mental disorder, including adjustment disorder. This provides access to up to 10 individual and 10 group Better Access psychology sessions per calendar year. GPs with Focused Psychological Strategies training can also deliver brief psychological therapy themselves using items 2721 to 2727. The GPCCMP (items 965/967, replacing CDM from July 2025) does not apply to adjustment disorder alone — it requires a coexisting chronic condition. For veterans, DVA Non-Liability mental health coverage applies since 2017 regardless of service-related connection.

Source quality

Sources grouped by evidence tier. AU primary tier first; international where AU is silent or lagging; named-author reconstruction where guidelines have not yet caught up. How tiers work.