Gulf War Illness

Example document — fictitious patient. Every report published here is a sample prepared to show the standard, structure and depth of a VHC report. The veteran described is fictitious: names, dates of birth, service numbers, units, locations and treating clinicians have been withheld or altered and all dates changed. It must not be relied upon as a record of any real claim.

Diagnostic Assessment — Gulf War Illness

Example 1 of 1 · fictitious patient (Veteran G)

Example document — fictitious patient. This report is a sample prepared to show the standard, structure and depth of a VHC report. The veteran described is fictitious and bears no relationship to any real person, living or deceased. Names, dates of birth, contact details, service numbers, units, locations and treating clinicians have been withheld or altered and all dates have been changed. It must not be relied upon as a record of any real claim.

Diagnostic Assessment

Statement of Principles — Gulf War Illness (Reasonable Hypothesis) No. 47 of 2026. There is no Balance of Probabilities instrument for this condition.

ADF History

The veteran, Date of Birth: [withheld], Officer’s Steward (Royal Australian Navy), two periods of service totalling approximately ten years commencing in the late 1980s and concluding in the late 1990s. Rank at discharge, service number and DVA file number withheld.

Occupational History

The veteran served as an Officer’s Steward in the Royal Australian Navy across two periods of service totalling approximately ten years. During his deployment to the Persian Gulf aboard an Australian guided-missile destroyer, he was additionally employed to assist with the operation of the ship’s main turret gun, which he loaded below sea level. This role placed him in direct proximity to combat operations and exposed him to the full spectrum of hazards associated with active wartime naval service, including missile attacks on four occasions, the constant threat of sea mines and chemical weapons, and the sustained psychological and physical burden of operating in a hostile theatre of war during the first Gulf War. The naval environment aboard warships of that era also involved exposure to diesel fumes, hydrocarbons and other occupational hazards.

History

The veteran, a former Officer’s Steward in the Royal Australian Navy, deployed to the Persian Gulf during the first Gulf War from December 1990 to May 1991. Following his return from this deployment he developed a constellation of chronic symptoms spanning multiple symptom domains — fatigue, pain, neurological/cognitive/mood disturbance and gastrointestinal complaints — consistent with Gulf War Illness as defined by the Kansas criteria and by Statement of Principles No. 47 of 2026.

Timeline

Dec 1990 — The veteran deployed to the Persian Gulf aboard an Australian guided-missile destroyer. He was employed as an Officer’s Steward but was also tasked with loading the ship’s main turret gun below sea level. The deployment lasted approximately five months within the Gulf War Theatre of Operations. “deployed to the Gulf”
17 Jan 1991 — The Gulf War commenced. The veteran began smoking on this date owing to a nihilistic belief that he would not survive the conflict. He described feeling as though he was going to die. The commencement of hostilities marked the beginning of sustained exposure to life-threatening combat conditions within the Gulf War Theatre of Operations. “felt like he was going to die”
Jan – May 1991 — During the deployment the veteran was exposed to multiple life-threatening events within the Gulf War Theatre of Operations. His ship and its battle group were attacked by anti-ship missiles on four occasions. There was a constant threat of sea mines and chemical weapons. On one occasion there was a ten-second countdown to anticipated missile impact. Two ships in the area were struck by sea mines with associated deaths. The veteran witnessed the bombing of a nearby city from the ship in the evenings. “attacked by missiles on 4 occasions”
May 1991 — On return from the deployment there was a stopover involving physical fighting among crew. The veteran’s closest friend attempted suicide during the voyage home and the veteran personally intervened to prevent him from throwing himself off a balcony. The veteran was advised by colleagues to “party it out” when he sought assistance for his symptoms. Problematic alcohol use commenced at this time at levels of up to 20 standard drinks per session. “best friend tried to commit suicide”
1991 — The veteran’s Defence medical record was annotated “GULF VETERAN – NOT FOR BLOOD DONATION”, reflecting his Gulf War service and associated health concerns. Onset of chronic fatigue, sleep disturbance, mood and cognitive symptoms, irritability, anger outbursts and pain symptoms attributable to Gulf War Illness. These symptoms have persisted continuously for more than 35 years. “Gulf Veteran – Not for blood donation”
Late 1990s — Joint pain documented in Defence medical records when the veteran was in his late twenties. An outpatient clinical record from a shore establishment medical centre noted musculoskeletal complaints including knee crunching on squatting, upper limb aching and cervical spine tenderness at C5–6. This documents pain symptoms across the pain symptom domain of the Kansas criteria. “knees crunch… gets ache… tender cervical neck”
Mid 2022 — The veteran attended his general practitioner to initiate his DVA claim process. He reported ten years of naval service including Gulf War deployment. Imaging of all joints was requested. “10 years in navy, was in Gulf war”
Mid 2023 — The veteran reported a recent diagnosis of Gulf War Illness through testing conducted by an Australian university Gulf War Illness research program. Blood testing detected biomarkers consistent with Gulf War Illness. He is enrolled in an ongoing longitudinal study receiving brain MRI every 12 months. “diagnosis of Gulf War Illness”
Late 2023 — Compensation Impairment Assessment conducted at the Veterans Health Centre. The assessment documented PTSD, anxiety disorder and an extensive medical history including obstructive sleep apnoea, lumbar spondylosis, left shoulder bursitis, cervical spondylosis, osteoarthritis of the feet and right lateral epicondylitis. The veteran was described as participating in a university study in which he was diagnosed with Gulf War Illness. “diagnosed with Gulf War Illness”
Early 2026 — Preparatory consultation for assessment conducted. Symptoms across all six Kansas criteria domains were canvassed: fatigue (persistent exhaustion requiring two to three hours of rest daily, feeling unwell after exertion, not feeling rested after sleep); pain (joint pain, muscle pain, widespread body pain); neurological/cognitive/mood (irritability, anger outbursts, difficulty concentrating, word-finding difficulty, depression, insomnia, night sweats); gastrointestinal (nausea and upset stomach); respiratory (nil significant); and skin (history of non-melanoma skin lesions). The veteran reported he was ceasing work and consistently avoiding social engagements. “physically and mentally exhausted”
23 Jun 2026 — The Statement of Principles concerning Gulf War Illness (Reasonable Hypothesis) No. 47 of 2026 commenced. This Statement of Principles, based on the Kansas definition, provides a specific diagnostic framework for the multisystem illness experienced by Gulf War veterans, distinct from the earlier Chronic Multisymptom Illness Statement of Principles. At the same meeting the Authority revoked its earlier declaration concerning Gulf War Syndrome.

Symptoms

At the time of onset in 1991, following his return from the Gulf War deployment, the veteran developed persistent fatigue, nightmares, insomnia, anxiety, depression, irritability, anger outbursts and problematic alcohol use. He commenced drinking up to 20 standard drinks per session to suppress nightmares. He experienced deterioration in his mental health and began withdrawing socially. Musculoskeletal pain symptoms were documented in the late 1990s with recorded joint pain. These symptoms have persisted continuously for more than 35 years since onset.

Currently the veteran presents with symptoms across multiple Kansas criteria domains. In the fatigue and sleep domain he experiences severe and debilitating fatigue every day, requiring mandatory rest periods of two to three hours in both the morning and afternoon; he feels unwell after exercise or exertion; he has severe and constant insomnia with broken sleep every two to three hours despite THC oil for sleep; and he does not feel rested after sleep. In the pain domain he reports severe and widespread joint pain, joint stiffness and muscle pain; under stress all of his muscles and joints ache, which he likens to having “run a marathon”. In the neurological/cognitive/mood domain he reports irritability and angry outbursts, difficulty concentrating throughout the day, occasional word-finding difficulty particularly under pressure, feeling down and depressed with constant low mood and anhedonia, and severe anxiety daily. In the gastrointestinal domain he reports nausea and upset stomach. In the skin domain he has a history of non-melanotic malignant neoplasm of the skin, an accepted condition. His social life is significantly restricted; he consistently makes excuses to avoid social engagements and was unable to attend a family member’s graduation owing to stress-induced symptom exacerbation. He has one former Navy friend from the Gulf War and otherwise avoids social interaction. He has been unable to continue his occupation as a compliance auditor.

Imaging

There is no imaging directly relevant to the diagnosis of Gulf War Illness, which is a clinical diagnosis based on a symptom presentation meeting the Kansas criteria. Imaging supporting the musculoskeletal symptom picture includes:

X-ray bilateral feet: “Bilateral tarsometatarsal joints mild degeneration”
X-ray lumbar spine: “Lumbar spondylosis — mild”
X-ray cervical spine: “Facet joint degeneration right C3/4”
Polysomnography: “Mild obstructive sleep apnoea”

In addition, blood testing through an Australian university Gulf War Illness research program detected biomarkers consistent with Gulf War Illness, and the veteran is enrolled in an ongoing longitudinal study receiving brain MRI every 12 months.

1. What is the formal diagnosis of the condition claimed above?

The formal diagnosis is Gulf War Illness.

DVA SoP code: No. 47 of 2026 (Reasonable Hypothesis), determined under subsection 196B(2) of the Veterans’ Entitlements Act 1986 and commencing 23 June 2026. The Repatriation Medical Authority has not determined a Balance of Probabilities Statement of Principles for this condition — the Balance of Probabilities column of the RMA register is empty — so the Reasonable Hypothesis instrument is the only one available, and it can only be applied to operational service. ICD-10-AM: there is no specific ICD-10 code for Gulf War Illness; the closest approximations are R68.89 (other general symptoms and signs) or F45.0 (somatisation disorder). Gulf War Illness is, however, a distinct diagnostic entity recognised by the Repatriation Medical Authority under its own Statement of Principles.

Gulf War Illness, as defined by SoP No. 47 of 2026, means multiple medically unexplained symptoms seen in military personnel that meet the Kansas definition diagnostic criteria. The symptoms must have persisted for at least six consecutive months, must not be better explained by another medical condition (including moderate to severe traumatic brain injury, chronic fatigue syndrome, fibromyalgia, chronic multisymptom illness, somatic symptom disorder or posttraumatic stress disorder), and the person must have concurrently at least one symptom of moderate or severe severity, or at least two symptoms of mild severity, in at least three of the six following symptom domains: (1) fatigue and sleep; (2) pain; (3) neurological/cognitive/mood; (4) gastrointestinal; (5) respiratory; and (6) skin.

Gulf War Illness is distinguished from Chronic Multisymptom Illness in that it uses the Kansas definition criteria — requiring symptoms across at least three of six specified domains — and is specifically linked to deployment to the Gulf War Theatre of Operations.

The veteran meets all diagnostic criteria for Gulf War Illness. He demonstrates current symptoms across at least four of the six Kansas criteria domains:

Domain 1 — Fatigue and sleep: fatigue (severe, daily, requiring two to three hours of mandatory rest); feeling unwell after exercise or exertion; problems falling and staying asleep (severe insomnia, broken sleep every two to three hours); not feeling rested after sleep. Multiple symptoms of moderate to severe severity.
Domain 2 — Pain: pain in joints (widespread, bilateral, multiple sites); pain in muscles (generalised muscle pain); body pain where he hurts all over (likened to having “run a marathon” under stress). Multiple symptoms of moderate to severe severity.
Domain 3 — Neurological/cognitive/mood: feeling irritable or having angry outbursts; difficulty concentrating; trouble finding words when speaking; feeling down or depressed; night sweats; problems remembering recent information. Multiple symptoms of moderate to severe severity.
Domain 4 — Gastrointestinal: nausea and upset stomach.
Domain 6 — Skin: other skin problems (non-melanotic malignant neoplasm of the skin, an accepted condition).

His symptoms have persisted for more than 35 years since onset in 1991, far exceeding the six-month persistence requirement. The symptoms are not better explained by another medical condition: while the veteran has accepted conditions of PTSD and anxiety disorder, the fatigue, pain and multisystem somatic symptom burden is disproportionate to what would be expected from those conditions alone, and the SoP definition excludes PTSD only where it better explains the symptoms. In this case PTSD accounts for part of the neurological/cognitive/mood domain but does not explain the fatigue, pain, skin or gastrointestinal symptoms.

2. For each diagnosis identified, please also provide the following dates

When did the veteran first experience symptoms attributable to this condition?
In 1991, following his return from the Gulf War deployment. Fatigue, sleep disturbance, mood and cognitive symptoms, irritability and anger outbursts commenced immediately upon return. Pain symptoms were first documented in Defence medical records in the late 1990s. [Compensation Impairment Assessment, psychiatric history; Navy medical record, outpatient clinical record; consultation notes]

When did the veteran first present to a health or medical provider for this condition?
1991 — the veteran sought assistance from colleagues on return from the Gulf War but was advised to “party it out”. Musculoskeletal symptoms were first documented in Defence records in the late 1990s. The underlying multisystem illness was not formally identified until the current assessment process.

When was the condition confirmed or formally diagnosed?
The veteran received a diagnosis of Gulf War Illness through testing conducted by an Australian university Gulf War Illness research program. The diagnosis was further confirmed through comprehensive clinical assessment which documented symptoms across multiple Kansas criteria domains. The Statement of Principles concerning Gulf War Illness (No. 47 of 2026) commenced on 23 June 2026, providing the legislative framework for this diagnosis.

When did the veteran first present to you or your practice for this condition?
Date withheld.

3. How was this diagnosis confirmed?

Key symptoms and signs. The veteran presented with symptoms across at least four of the six Kansas criteria symptom domains — fatigue and sleep (severe daily fatigue, unrefreshing sleep, insomnia with broken sleep every two to three hours, post-exertional malaise); pain (widespread joint pain across multiple sites, generalised muscle pain, whole-body pain under stress); neurological/cognitive/mood (irritability and anger outbursts, difficulty concentrating, word-finding difficulty, depression, anxiety, night sweats); and skin (non-melanotic malignant neoplasm of the skin). Additional gastrointestinal symptoms (nausea, upset stomach) were documented. Symptoms have persisted for more than 35 years since onset in 1991. Significant functional impairment was documented affecting both occupational capacity (the veteran ceasing employment as a compliance auditor) and social functioning (consistent avoidance of social engagements, inability to attend family events, social isolation). [consultation notes; Compensation Impairment Assessment, psychiatric and medical history]

Objective evidence. Blood testing through an Australian university Gulf War Illness research program detected biomarkers consistent with Gulf War Illness. The veteran is enrolled in an ongoing longitudinal study receiving brain MRI every 12 months. [Compensation Impairment Assessment, medical history; consultation notes]

Service documentation. Navy personal medical records annotated “GULF VETERAN — NOT FOR BLOOD DONATION”, confirming Gulf War service and associated health recognition. Service records confirm deployment to the Gulf War Theatre of Operations from December 1990 to May 1991. [Navy medical record, cover page and service records]

Supporting diagnoses. PTSD and anxiety disorder are already accepted conditions arising from the same Gulf War deployment, confirming the traumatic service history. Multiple musculoskeletal conditions are formally diagnosed including thoracolumbar spondylosis, bilateral foot osteoarthritis, rotator cuff syndrome and right lateral epicondylitis, supporting the pain symptom domain. Obstructive sleep apnoea is formally diagnosed on polysomnography, contributing to the fatigue and sleep domain. Non-melanotic malignant neoplasm of the skin is an accepted condition supporting the skin domain. [Compensation Impairment Assessments, assessed conditions]

Exclusion criteria. The multisystem symptom burden is not better explained by PTSD, chronic fatigue syndrome, fibromyalgia, somatic symptom disorder or any other single medical condition. While PTSD contributes to the neurological/cognitive/mood domain, it does not explain the fatigue, pain, skin or gastrointestinal symptoms. Gulf War Illness captures the additional multisystem disease burden beyond what is accounted for by the individual accepted diagnoses.

4. What do you consider to be the cause(s) of the condition in this veteran?

Causative factors — Reasonable Hypothesis (SoP No. 47 of 2026)

The Reasonable Hypothesis factors apply as the veteran’s Gulf War deployment constituted operational service. The clinical onset of Gulf War Illness is 1991, within the ten-year period following his deployment to the Gulf War Theatre of Operations.

The factor — having deployed to the Gulf War Theatre of Operations at any time during the period 2 August 1990 to 21 September 1991 before clinical onset, and where this deployment has occurred in the ten years immediately preceding clinical onset — MET

The veteran deployed to the Persian Gulf aboard an Australian guided-missile destroyer from December 1990 to May 1991. This deployment falls squarely within the qualifying period of 2 August 1990 to 21 September 1991 specified in the Statement of Principles. The Gulf War Theatre of Operations is defined in Schedule 1 — Dictionary as encompassing the geographic area that includes Iraq, Kuwait, Bahrain, Oman, Qatar, Saudi Arabia, the United Arab Emirates, the Island of Cyprus, and the sea areas contained within the Gulf of Suez, the Gulf of Aqaba, the Red Sea, the Gulf of Aden, the Persian Gulf, the Arabian Sea, the Gulf of Oman, the Suez Canal and the Mediterranean Sea east of 030 degrees east. The veteran’s ship operated within the Persian Gulf during this deployment, directly within the defined Theatre of Operations. The clinical onset of Gulf War Illness in 1991 is within the ten years immediately following the deployment, satisfying the temporal requirement. Service records, Defence medical records annotated “GULF VETERAN – NOT FOR BLOOD DONATION” and DVA’s own claim documentation confirm this deployment and its dates. This is the sole factor required under the Reasonable Hypothesis standard, and it is unequivocally met.

This Statement of Principles contains a single factor: deployment to the Gulf War Theatre of Operations within the qualifying period. It is a deployment-based factor rather than a stressor-based factor, meaning it requires only confirmed deployment within the defined Theatre and timeframe, both of which are established.

Balance of Probabilities

There is no Balance of Probabilities Statement of Principles for Gulf War Illness. The Repatriation Medical Authority has determined a Reasonable Hypothesis instrument only. That is not a gap in this claim: the veteran’s Gulf deployment was operational service, so the Reasonable Hypothesis standard is the applicable one and No. 47 of 2026 is the governing instrument. It would matter for a veteran claiming this condition on peacetime service alone, for whom no Statement of Principles pathway exists.

The contribution of the cause is 100% and significant.

Sequelae

Gulf War Illness in this veteran is not considered a sequela of another condition. It is a primary condition arising directly from his deployment to the Gulf War Theatre of Operations. The veteran’s accepted conditions of PTSD, anxiety disorder and various musculoskeletal conditions share overlapping symptoms with Gulf War Illness in certain domains, but Gulf War Illness represents a distinct diagnostic entity capturing the multisystem symptom burden — particularly the fatigue, pain and somatic components — that is not fully accounted for by those individual diagnoses alone. Gulf War Illness and Chronic Multisymptom Illness describe the same underlying multisystem illness; Gulf War Illness under SoP No. 47 of 2026 provides a more specific diagnostic framework using the Kansas definition, with a dedicated causative factor directly linked to Gulf War Theatre deployment.

Unintended consequence

This condition is not considered an unintended consequence of medical management. Gulf War Illness arose as a direct consequence of the veteran’s deployment to the Gulf War Theatre of Operations and the associated environmental, psychological and physical exposures encountered during that deployment, not as a result of any medical treatment provided by the Commonwealth.

Inability to attain appropriate medical management

This factor is MET for the purposes of worsening and aggravation.

The veteran experienced a prolonged inability to attain appropriate clinical management for his Gulf War Illness. Following onset of symptoms in 1991 he was unable to obtain appropriate clinical management for the following reasons.

First, when he sought assistance from his colleagues in 1991 on return from the Gulf War, he was advised to “party it out”. This dismissive response within the military environment constituted a barrier to accessing appropriate care. Per the Full Federal Court in Brew v Repatriation Commission (10 September 1999), the meaning of “inability” is broad and encompasses not only objective lack of capacity but also subjective barriers including psychological or emotional incapacity and threats of sanctions, formal or informal, that may deter a veteran from seeking treatment.

Second, his comorbid PTSD and anxiety disorder, arising from the same Gulf War service, created significant psychological barriers to seeking and engaging with healthcare. Avoidance behaviour is a cardinal feature of PTSD, and that avoidance extended to healthcare-seeking behaviour.

Third, Gulf War Illness was not recognised in Australian veterans’ entitlements legislation until the commencement of SoP No. 47 of 2026 on 23 June 2026. Prior to that date the condition was subsumed under the broader Chronic Multisymptom Illness Statements of Principles, which did not specifically address the Gulf War aetiology or the Kansas criteria. Even had the veteran presented to healthcare providers with his full constellation of symptoms, a diagnosis of Gulf War Illness under a specific SoP framework was not available.

Fourth, the absence of any documented presentation specifically for the combined multisystem symptom complex spanning the Kansas criteria domains between 1991 and the current claim process — a period exceeding 30 years — is itself indicative of barriers to healthcare. The absence of documentation does not mean that something did not occur, and delays of this magnitude between onset and formal diagnosis are strongly indicative of barriers to healthcare, satisfying inability to attain appropriate medical management.

The prolonged failure to diagnose and appropriately manage Gulf War Illness resulted in material worsening of the condition, with symptoms becoming entrenched, chronic and progressively more disabling over more than three decades.

5. Health summary and medication history

See attached report.

References

Naval deployment record — Gulf War deployment [Navy medical record; cover page and service records]
Defence medical record annotation, “GULF VETERAN – NOT FOR BLOOD DONATION” [Navy medical record; personal medical records cover]
Outpatient clinical record, shore establishment medical centre — musculoskeletal complaints documented [Navy medical record; outpatient clinical record]
General practice consultation — DVA medical initiation [Compensation Impairment Assessment; GP clinical notes]
Radiology — bilateral feet, lumbar spine and cervical spine X-rays [Compensation Impairment Assessment; imaging results]
Polysomnography — sleep study [Compensation Impairment Assessment; sleep study report]
General practice consultation — DVA claim forms [Compensation Impairment Assessment; GP clinical notes]
General practice consultation — Gulf War Illness diagnosis [Compensation Impairment Assessment; GP clinical notes]
Compensation Impairment Assessment — mental health, Veterans Health Centre [assessment report]
Compensation Impairment Assessment — physical conditions, Veterans Health Centre [assessment report]
Patient health summary [Compensation Impairment Assessment; health summary printout]
University Gulf War Illness study — longitudinal research [Compensation Impairment Assessment; consultation notes]
Gulf War Illness assessment — preparatory consultation [clinical assessment notes]
Statement of Principles — Gulf War Illness (Reasonable Hypothesis) No. 47 of 2026, Repatriation Medical Authority
Letter from treating psychiatrist

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