Statement of Principles concerning benign paroxysmal positional vertigo (Reasonable Hypothesis) (No. 56 of 2017)

The instrument directly affects veterans who rendered operational service, peacekeeping service, hazardous service, or British nuclear test defence service under the VEA, and members who rendered warlike or non-warlike service under the MRCA. It also affects their dependents and legal personal representatives in claims for death from BPPV. The instrument applies to claims to which section 120A of the VEA or section 338 of the MRCA applies. This means it governs claims lodged under the reasonable hypothesis standard, which is the standard for operational and certain other service. It does not apply to claims made under the Safety, Rehabilitation and Compensation (Defence-related Claims) Act 1988 or to civil liability claims.

Decision-makers in the Department of Veterans’ Affairs, the Veterans’ Review Board, and the Administrative Appeals Tribunal must apply this instrument when assessing BPPV claims under that standard. Medical practitioners providing evidence for such claims need to understand the specific factor definitions, particularly MET levels, timing windows, and clinical definitions of migraine, labyrinthitis, and vestibular neuritis. Legal practitioners representing claimants must ensure that the medical evidence aligns with at least one factor and that the factor is shown to be related to relevant service. The instrument also affects the Repatriation Medical Authority itself, which is responsible for reviewing and remaking statements of principles periodically.

The instrument does not create obligations or rights for private citizens generally. Its impact is confined to the veterans’ compensation system. However, it may have indirect effects on medical practice if doctors are asked to opine on whether a person’s BPPV meets the defined criteria for a compensation claim. The definition of BPPV in subsection 6(2) is somewhat narrower than general clinical definitions because it requires observed nystagmus or treatment response, which may exclude some cases diagnosed solely by history.

No duties are imposed by this instrument on any person. It is a legislative rule that decision-makers must apply when determining whether a reasonable hypothesis exists. The primary right for a claimant is to have a claim for BPPV accepted if at least one factor in section 8 is present and that factor is related to relevant service. This right is procedural in the sense that it changes the evidentiary threshold: the claimant does not need to prove causation on the balance of probabilities, only that a reasonable hypothesis consistent with the factors exists. If the factor is satisfied, the decision-maker must accept the connection unless there is contrary evidence that outweighs the hypothesis, though in practice the instrument is binding as to what counts as sufficient.

The instrument does not confer a right to treatment or medical care. It only determines eligibility for compensation under the VEA or MRCA for incapacity, impairment, or death. The right to compensation arises from the parent Acts, not from this instrument. The instrument merely defines a condition precedent.

Factor 22, inability to obtain appropriate clinical management, creates a right that is unique in that it does not require a specific causal event. If a veteran’s BPPV worsened because appropriate clinical management was not available during service, the worsening may be accepted. This places a duty on decision-makers to consider the availability of medical care in service circumstances. It also implies that the government, through its compensation system, may be liable for systemic failures in medical access.

Section 10 creates an obligation on decision-makers to import the factors from other statements of principles when a factor in this instrument refers to another injury or disease. For example, if factor 4 refers to Meniere’s disease, the decision-maker must apply the statement of principles for Meniere’s disease to determine whether the veteran has that condition. This ensures consistency but adds complexity.

This instrument contains no penalty provisions. It is not a penal statute. Enforcement of its requirements occurs through the administrative review process. If a decision-maker fails to apply the instrument correctly, a claimant may seek review by the Veterans’ Review Board and then the Administrative Appeals Tribunal. The tribunal will consider whether the correct factors were applied and whether the decision was made according to law. Judicial review in the Federal Court is available on questions of law, such as misinterpretation of a factor definition or failure to consider section 10.

Fraud or dishonesty in claiming BPPV is penalised under separate provisions of the VEA and the Criminal Code, not under this instrument. For example, knowingly providing false medical evidence to satisfy a factor could lead to prosecution. But the instrument itself does not address enforcement.

The only real “sanction” for a decision-maker who misapplies the instrument is that their decision will be set aside on review. There is no personal liability. The instrument is binding in the sense that the Authority has determined that the factors are the minimum necessary, and decision-makers cannot ignore them or require additional evidence beyond them. If a claim satisfies a factor, the decision-maker cannot reject it on the basis that the factor alone is insufficient to raise a reasonable hypothesis. Similarly, if no factor is met, the decision-maker must reject the claim under the reasonable hypothesis standard.

Because this instrument is a disallowable legislative instrument, it is subject to parliamentary scrutiny. If either house of Parliament disallows it within the prescribed period, it ceases to have effect. That is a form of political enforcement, not judicial.

This instrument is made under subsection 196B(2) of the VEA, which requires the Repatriation Medical Authority to determine statements of principles for injuries and diseases where there is sound medical-scientific evidence of a connection to service. It sits within a broader statutory framework: the VEA and MRCA. Section 120A of the VEA provides that the reasonable hypothesis standard applies to claims relating to operational service, and that a statement of principles must be applied. Section 120B provides that a claim cannot succeed unless the material raises a reasonable hypothesis consistent with the statement. This instrument directly implements those sections for BPPV.

It interacts with other statements of principles through section 10. If a factor refers to an injury or disease that has its own statement, that other statement is incorporated by reference. This means the decision-maker must consult multiple instruments. For example, factor 6 refers to herpes simplex virus or varicella zoster virus infection causing vestibular nerve illness; if those infections are themselves covered by a statement, the factor mechanism is imported.

The instrument also references ICD-10-AM Ninth Edition from July 2015. This is a classification standard. If later editions are adopted for other purposes, this instrument remains tied to that edition unless amended. This may create inconsistency if medical evidence uses a different coding version.

The instrument applies only to claims under the VEA and MRCA. It does not apply to claims under the Safety, Rehabilitation and Compensation (Defence-related Claims) Act 1988, which uses a different causation standard. For such claims, BPPV would be assessed under ordinary tort or workers’ compensation principles. This can lead to inconsistent outcomes for different types of defence service.

The instrument does not interact with state workers’ compensation laws or medicare. Its operation is entirely within the federal veterans’ compensation system.

The instrument as provided is No. 56 of 2017, dated 18 August 2017 and commencing 18 September 2017. The source does not include any amendment history. No previous versions or subsequent amending instruments are referenced. It is common for the Repatriation Medical Authority to revoke and remake statements of principles periodically as medical evidence evolves. For BPPV, there would likely have been earlier statements under previous numbers, but the source does not mention them. This instrument replaced any earlier statements for the reasonable hypothesis standard at the time of its commencement.

Because no amendment history is provided in the source, a practitioner must check the Federal Register of Legislation for any subsequent amendments to this instrument, or for any revocation and replacement. Statements of principles are disallowable instruments, and any amendments would be registered. As of the date of this analysis, the instrument may have been amended or replaced. The absence of amendment history in the source is standard for the instrument as published. The user should verify the current status before relying on it.

The source does not discuss any litigation history. No cases are named. This is typical for a statement of principles; they are not themselves litigated in court in their own right. However, they are frequently the subject of administrative review and judicial review. The Federal Court and the Administrative Appeals Tribunal have considered the interpretation of terms in statements of principles, such as “clinical onset”, “clinical worsening”, and “MET”. The High Court has also considered the constitutional validity of the statement of principles scheme. But because the source provides no cases, we cannot name any. The instruction is to only name cases the source names. Therefore, this section must note that information is lacking. We can state that the instrument itself has not been the subject of reported litigation on its own terms, but its predecessors may have been.

Given the instruction to ground every claim in the source, we cannot speculate on hypothetical litigation. We simply report that the source contains no litigation history. This is a gap that a serious researcher would need to fill by checking case law databases. The absence of discussion in the source does not mean no litigation exists; it means the instrument’s official text does not refer to any.

Several traps await practitioners. First, the timing windows are strict. Factor 1 requires trauma to the head or head and neck within 30 days before clinical onset. The note lists types of trauma: being struck by an object, striking an object, or undergoing jolting movements. A veteran who had a minor bump 31 days before onset does not meet the factor. Second, factor 2 requires surgery involving transmission of vibration or percussive forces to the inner ear within three months before onset. Dental surgery is included, but only if the surgery involved such forces; a simple extraction under local anaesthetic without a hammer or drill may not qualify. Third, factor 7 requires physical activity at a rate of at least six METs involving sudden head turning, jolting, or vibration of the body within seven days. MET is defined in Schedule 1 but not in the factor. A person’s MET level depends on weight and exertion; an occasional brisk walk may not reach six METs. Misunderstanding MET is common.

Fourth, factor 10 requires being confined to bed for medical or surgical treatment for at least three days within the 14 days before onset. “Confined to bed” is not defined. Is someone allowed to use the bathroom? This could be litigated. Fifth, factor 22, inability to obtain appropriate clinical management, is broad and may be interpreted expansively. But it applies only to clinical worsening, not initial onset. There is no factor for inability to obtain management at the time of onset.

Sixth, the instrument distinguishes between clinical onset and clinical worsening. Factors 1 to 11 are for onset; 12 to 22 for worsening. A claim based on onset cannot rely on bed confinement (factor 10 for onset, factor 21 for worsening). The timing windows differ: for onset, factors have stricter windows (e.g., 30 days for trauma); for worsening, the same windows apply but measured from worsening.

Seventh, the definition of BPPV in subsection 6(2) requires observation of nystagmus or evidence of response to repositioning manoeuvres. A diagnosis based solely on history and symptom description may not satisfy the definition, even if clinically accepted. The compensating authority may insist on clinical documentation of nystagmus or treatment response.

Eighth, section 9 requires that the factor be related to relevant service. For factors 1 to 11 (onset), the factor itself must be related to service. For factors 12 to 22 (worsening), the factor must relate to service, but the pre-existing BPPV may have been present before service. This means a veteran who had BPPV before service can still claim for worsening if a service-related factor caused the worsening.

Ninth, the cross-reference in section 10 means that if a factor refers to another condition (e.g., Meniere’s disease, factor 4), that condition itself must meet its own statement of principles. This adds layers of proof. A veteran cannot simply assert they have Meniere’s disease; the statement for Meniere’s disease must be satisfied.

Tenth, the instrument is one of two standards: there is also a “Balance of Probabilities” statement for BPPV. Practitioners must ensure they are applying the correct one for the claim type.

For a claimant or legal representative, compliance means ensuring the claim is supported by medical evidence that identifies at least one factor in section 8, specifies the relevant time window, and demonstrates that the factor is related to the person’s service. The medical evidence should explicitly state whether the condition is BPPV as defined by subsection 6(2), including observation of nystagmus or treatment response. If the claim involves clinical worsening, the evidence must distinguish the pre-existing condition from the aggravation.

The decision-maker must determine which standard applies: for operational service under the VEA or warlike service under the MRCA, the reasonable hypothesis standard applies and this instrument governs. For non-warlike service under the MRCA, the standard may be reasonable hypothesis only if the claim is under section 338 of the MRCA, which refers to claims where the injury or disease is related to service. The decision-maker must verify that the claim falls under that section.

When a factor involves a MET level, the decision-maker should obtain information about the precise physical activity and calculate METs using standard tables. The note to factor 7 does not define MET, but Schedule 1 does. The decision-maker must also check that the activity involved sudden head turning, jolting, or vibration. For factor 10, medical records must show confinement to bed for medical or surgical treatment, not merely rest due to illness. Bed confinement for non-medical reasons, such as a snow day, likely does not count.

For factor 22, the decision-maker must consider whether appropriate clinical management was available to the veteran. This is highly fact-specific. Evidence of a lack of access to repositioning manoeuvres or specialist assessment during service could support the factor. The decision-maker must also consider whether the worsening would have been prevented with proper management.

Legal practitioners should also check for any subsequent amendments or replacements of this instrument. Statements of principles are remade with new numbers periodically. The date of the claim may determine which version applies. If the claim was lodged after the commencement of a later instrument, that later instrument applies. Section 4 says the instrument applies to a claim to which sections 120A or 338 apply, but does not specify a date of effect. It is likely that the instrument in force at the time of decision applies, but practitioners should confirm with the DVA.

Finally, if a factor refers to another injury or disease, the practitioner must obtain the statement of principles for that condition and ensure its factors are met. This may require additional medical evidence. For example, factor 4 refers to Meniere’s disease. The Meniere’s disease statement must be satisfied before factor 4 can be used. This adds cost and time to claim preparation.