Military Rehabilitation and Compensation (Catastrophic Injury or Disease) Determination 2018

This instrument prescribes the objective and categorical conditions that determine whether an injury or disease qualifies as a catastrophic injury or disease for the purposes of subsection 213(1) of the Military Rehabilitation and Compensation Act 2004 (the Act). It does not itself create entitlements or benefits; rather, it sets the threshold criteria that the Commission must apply when deciding whether an injury or disease meets the Act’s definition of catastrophic. The instrument does this by (a) fixing the clinical assessment tool and minimum impairment threshold required (the Functional Independence Measure, FIMTM, and a score threshold) and (b) listing five discrete categories of injury or disease that the Commission must be satisfied apply to the person (nerve, brain, amputation, burn, blindness), each with specified objective subcriteria (see ss 5-11, particularly s 6).

Mechanically, there are two conjunctive conditions under s 6. First, the injury or disease must produce an impairment assessed by a FIMTM credentialed medical or health care professional at a score of 5 or less on any of the items on the FIMTM score sheet (s 6(a)). Second, the Commission must be satisfied that the injury or disease falls within one of the five listed catastrophic categories in s 6(b)(i)-(v). The instrument defines each category with specific clinical thresholds: spinal or plexus lesions with sensory/motor/bladder/bowel deficits for nerve injuries (s 7); cognitive, physical or psychosocial function impairment with specified indicators such as post traumatic amnesia of at least seven days, significant brain imaging abnormality, or Standardised Mini‑Mental State Examination (SMMSE) score below 25 for brain injuries (s 8); specified major amputations or combination losses for amputation (s 9); specified full thickness burn thresholds by percentage of total body surface area, anatomical sites, or severe inhalation injury for burns (s 10); and specific binocular visual acuity or constriction thresholds for blindness (s 11).

The instrument also fixes the versions of the external clinical instruments it imports. The FIMTM score sheet is the version as it exists on the day of commencement, published by the Australasian Rehabilitation Outcomes Centre (s 5). The SMMSE tool likewise is the version published by the Independent Hospital Pricing Authority as at commencement (s 5). The instrument commenced the day after registration on the Federal Register of Legislation (s 2) and is made under subsection 213(2) of the Act (s 3). Its stated purpose is to prescribe the conditions that must be satisfied for the definition in subsection 213(1) (s 4).

The instrument operates by combining three principal concepts: an impairment threshold measured by an objective instrument, categorical clinical definitions, and an administrative satisfaction point held by the Commission.

1. Impairment threshold, objective instrument and credentialing. The first conceptual building block is the FIMTM score sheet. The instrument requires that the impairment be assessed by a FIMTM credentialed medical or health care professional and that at least one item on the FIMTM score sheet be scored at 5 or less (s 6(a)). The FIMTM is identified and the version frozen to the day of commencement (s 5). That creates a single-item trigger: a low score on any item suffices for the impairment limb of the test.

2. Categorical clinical definitions. The second block is a closed list of injury/disease categories: catastrophic nerve, brain, amputation, burn, blindness (s 6(b)(i)-(v)). Each category is defined by objective clinical criteria in ss 7-11. Examples include specific anatomical lesions and functional deficits for nerve injuries (s 7); PTA of at least seven days, significant imaging abnormality, or SMMSE <25 for brain injuries (s 8(a)); loss of specifically listed limb segments or combinations for amputation (s 9); full thickness burns exceeding percentage thresholds differentiated by age, burns to hands/face/genital area, or inhalation injury with pulmonary function <50% predicted for burns (s 10); and binocular corrected visual acuity below 6/60 or constriction to within 10 degrees of fixation in the better eye for blindness (s 11).

3. Administrative satisfaction. The third block is administrative: beyond the FIMTM assessment, the instrument requires that the Commission itself be satisfied that the injury or disease falls within one of the listed categories (s 6(b)). The instrument does not prescribe the evidentiary standard the Commission must apply when forming that satisfaction, but it does anchor the Commission’s decision-making to the specified clinical criteria.

Other important conceptual features include the definitional limiting language for injury and disease. The instrument defines injury and disease as those in respect of which compensation is payable under the Act (s 5). Thus, the instrument’s tests apply only to claimable injuries/diseases under the Act’s compensation framework. The instrument also imports external clinical tools by reference and fixes their versions to the day of commencement (s 5), which limits later automatic incorporation of tool updates. Finally, some criteria include qualitative catch-all language allowing equivalence by effect and severity (for example s 8(b) for brain injury), which introduces an element of comparability and discretion alongside the objective thresholds.

The instrument affects the following principal groups and roles.

• Claimants under the Military Rehabilitation and Compensation Act 2004 with an injury or disease that may meet the Act’s definition of catastrophic injury or disease. The instrument prescribes the conditions that will determine whether those claimants’ conditions satisfy subsection 213(1) of the Act, by operation of ss 4 and 6. The definitional thresholds and categorical criteria will determine whether a claimant’s condition is classified as catastrophic for the purposes of the Act’s compensation and rehabilitation machinery.

• The Military Rehabilitation and Compensation Commission (referred to in the instrument simply as the Commission). The Commission must be satisfied that the injury or disease falls within one of the listed catastrophic categories (s 6(b)). That places a decision-making duty on the Commission to apply the instrument’s clinical thresholds and to form a judgment about equivalence where the instrument permits (for example s 8(b)). The instrument does not specify the procedure the Commission must follow, but it makes its satisfaction an explicit prerequisite.

• FIMTM credentialed medical or health care professionals. The instrument requires assessment by a FIMTM credentialed professional (s 6(a)). Those professionals therefore carry a gatekeeping role. The instrument fixes the version of the FIMTM score sheet as at commencement and ties assessment to the credentialed status of the assessor (s 5). The practical effect is that only scores issued by credentialed assessors on the specified version will satisfy s 6(a).

• Clinicians and specialists who produce evidence relevant to categorical criteria. This includes neurosurgeons, neurologists, neuropsychologists, radiologists (for significant brain imaging abnormality in s 8), respiratory physicians or occupational lung specialists (for pulmonary function thresholds in s 10(b)), burn surgeons and rehabilitation specialists (for burn total body surface area calculations in s 10(a)), orthopaedic and vascular surgeons and prosthetic specialists (for amputation length thresholds in s 9), and ophthalmologists or optometrists (for binocular visual acuity and visual field constriction in s 11). The instrument does not require particular specialties, but these clinical inputs are the types of evidence the Commission will need to form satisfaction against the specified thresholds.

• Administrative and records personnel within the compensation system. Because the instrument fixes tool versions and prescribes specific numerical and anatomical thresholds, administrators must manage documents and evidence demonstrating that assessments were conducted with the correct tool versions and meet the numerical thresholds. The FIMTM and SMMSE versions are fixed as at commencement (s 5), so document management must preserve the link to the version used.

Key duties and rights derive from the instrument’s conjunctive test in s 6 and the defined categorical criteria in ss 7-11.

Duties

• Commission’s duty to form satisfaction. The Commission must be satisfied that the injury or disease is one of the five catastrophic categories listed in s 6(b). The instrument does not specify procedural steps for achieving that satisfaction or a standard of proof; it requires subjective or administrative satisfaction anchored to the specified criteria. The Commission therefore has a duty to review evidence and to make an affirmative satisfaction finding for the second limb of s 6.

• Requirement of a FIMTM assessment by a credentialed professional. Under s 6(a), the impairment limb requires assessment by a FIMTM credentialed medical or health care professional. That places a duty on claimants to obtain an assessment from such a credentialed professional, and on credentialed professionals to apply the FIMTM tool consistent with its version fixed by the instrument (s 5). The instrument implies a duty on administrators to confirm credentialing and version.

• Evidentiary duty on clinicians and report writers. The Commission’s satisfaction will depend on clinical evidence corresponding to the instrument’s numerical and anatomical criteria: e.g. documentation of post traumatic amnesia periods, radiology reports showing imaging abnormalities, SMMSE scores, pulmonary function testing results against predicted values for age/height/ethnicity, operative notes for amputations with measurements, and ophthalmic reports for visual acuity and constriction. Clinicians drafting reports thus have a functional duty to provide the specific indicators the instrument requires.

Rights

• Right to be classified as catastrophic where the criteria are met. A person whose injury or disease satisfies both limbs of s 6 becomes, for the purposes of subsection 213(1) of the Act, a person with a catastrophic injury or disease. The instrument is a definitional instrument. It supplies the conditions that, when met, change the legal classification that triggers the Act’s consequences. The instrument itself does not list the entitlements that flow from that classification; those are set out in the Act. The right the instrument creates is a definitional right to be regarded as catastrophic under the Act where the criteria are satisfied.

• Right to have assessments done with the specified tool versions. Because the instrument fixes the FIMTM and SMMSE versions to those existing on the day of commencement (s 5), claimants have the operational right that their assessment be evaluated against those fixed versions for catastrophic classification purposes. Assessments using later versions are not incorporated by the instrument.

This instrument does not create criminal offences, civil penalties or fines. It is a definitional subordinate instrument that prescribes conditions for the Act’s definition of catastrophic injury or disease. There are no express sanctioning, penalty or enforcement provisions contained within the instrument itself.

Enforcement, in the sense of administrative application and dispute, occurs through the Commission’s decision-making. Section 6 creates two conditions: the FIMTM score requirement assessed by a credentialed professional (s 6(a)) and the Commission’s satisfaction that the injury or disease is one of the listed categories (s 6(b)). The instrument therefore places enforcement of the definition in the hands of administrative action by the Commission and the professional assessments relied upon. The instrument does not specify the standard or procedure for that satisfaction, nor does it specify review or merits review pathways within the instrument text itself.

Any contestation or challenge to how the instrument is applied will be governed by the Act and general administrative law principles and review mechanisms available under the Act and the Administrative Decisions (Judicial Review) Act 1977 or other judicial review avenues, but the instrument itself does not set out those mechanisms. The instrument does, however, create operational points where disputes are likely to occur and where enforcement-like processes become relevant:

• Credentialing of FIMTM assessors. Disputes may arise about whether an assessor is FIMTM credentialed and whether the assessment complied with the version fixed by the instrument (s 5 and s 6(a)). The instrument does not provide a mechanism to settle credentialing disputes; it relies on external credentialing arrangements.

• Commission satisfaction and evidentiary sufficiency. Because s 6(b) requires the Commission to be satisfied that the condition falls into one of the categories in ss 7-11, disputes can arise about the sufficiency, interpretation and weight of clinical evidence. The instrument contains some qualitative language (for example s 8(b) referring to damage "similar in effect and severity") that introduces discretionary judgment. The instrument does not prescribe internal procedures for how the Commission must document or record that satisfaction.

• Use and fixation of external instrument versions. The FIMTM score sheet and the SMMSE tool are fixed to the versions existing on the commencement date (s 5). There is no built‑in mechanism in the instrument to adopt updated versions. That creates a compliance requirement and an enforcement point if newer versions are used.

The instrument is explicitly made under subsection 213(2) of the Military Rehabilitation and Compensation Act 2004 and its purpose is to prescribe conditions for the definition of catastrophic injury or disease in subsection 213(1) of the Act (ss 3-4). The instrument therefore functions as subordinate legislation that slots into the Act’s compensation and rehabilitation framework. Its operation and legal effect must be read against the Act.

Key interactions and points of legal connection in the instrument:

• Connection to the Act’s compensation framework. The instrument’s definitions of "injury" and "disease" are limited to those in respect of which compensation is payable under the Act (s 5). That links the instrument to the Act’s eligibility rules for compensation. Only injuries or diseases that qualify for compensation under the Act are examinable under the instrument’s catastrophic thresholds.

• Administrative decision-making under the Act. The instrument requires the Commission to be satisfied that the injury or disease is one of the listed catastrophic categories (s 6(b)). That places the instrument within the Act’s administrative decision-making architecture and means the Commission will apply the instrument when making determinations that flow from the Act. The instrument does not displace or override procedural or merits or judicial review frameworks embedded in the Act or general administrative law.

• Incorporation of external clinical standards. The instrument imports clinical assessment tools published by bodies external to the Act: the Australasian Rehabilitation Outcomes Centre for the FIMTM score sheet, and the Independent Hospital Pricing Authority for the SMMSE tool (s 5). The instrument fixes the versions as at commencement. This form of incorporation by reference means that clinical standards and metrics used in other spheres become determinative for catastrophic classification under the Act. The instrument therefore creates an intersection between compensation law and clinical assessment standards.

• Interaction with medical and clinical regulatory frameworks. The instrument requires FIMTM credentialed assessors and references clinical tests (SMMSE, spirometry, imaging, PTA, ophthalmic acuity and fields). While the instrument does not regulate clinical practice or clinician registration directly, its reliance on credentialled assessors and specified test results interacts operationally with clinician credentialling, professional conduct, and clinical governance frameworks. The instrument does not set or modify those clinical regulatory standards; it relies on their existence.

The instrument states it is the Military Rehabilitation and Compensation (Catastrophic Injury or Disease) Determination 2018 and that it commences on the day after it is registered on the Federal Register of Legislation (s 1 and s 2). It is made under subsection 213(2) of the Military Rehabilitation and Compensation Act 2004 (s 3). The instrument itself fixes the versions of two external clinical tools to those that exist on the day of commencement (s 5). Those three temporal fixings are the only temporal or provenance statements included in the instrument text.

The instrument text contains no express amendment schedule, no history of prior instruments or replacement of earlier determinations, and no transitional provisions or savings clauses. It does not specify an expiry date or sunset clause. The instrument therefore operates as a stand‑alone subordinate instrument from the commencement date specified. Because the instrument fixes external tool versions as at the day of commencement (s 5), any future amendment of the instrument would be necessary to change the version of the FIMTM score sheet or the SMMSE tool used for catastrophic classification.

The instrument does not state any past amendments or replacements. It does not provide a mechanism for automatic incorporation of later versions of the clinical tools it references. Therefore, amendment to change substantive thresholds, to add categories, to adjust numerical thresholds or to adopt updated clinical instruments would require a further instrument under the Act (s 3 indicates the instrument is made under subsection 213(2)). The instrument does not set out any delegated authority for administrative amendment beyond that enabling provision.

Because the instrument is short and focused on definitional matters, practical amendment reasons would be limited to: updating clinical tool versions, changing numerical thresholds for impairment or specific categories, adding or removing categories, or clarifying ambiguous language such as the "similar in effect and severity" language in s 8(b). None of those amendment mechanisms or histories are recorded in the instrument text provided.

The instrument text does not record any litigation history. There are no cases, judicial decisions, appeals or administrative review determinations cited in the instrument itself. The instrument is a delegated definition instrument that prescribes substantive clinical thresholds for the Act and contains no express litigation or dispute-resolution history.

That said, the instrument’s structure identifies several potential loci for administrative or judicial disputes, should they arise. Those loci are visible within the instrument text itself and are factual and legal sources of contestability:

• Commission’s discretionary satisfaction. Section 6(b) requires the Commission to be "satisfied" that the injury or disease is one of the listed categories. The instrument does not fix the threshold of proof or the decision‑making process for this satisfaction. Disputes may therefore arise about whether the Commission properly exercised its satisfaction function, including questions about the sufficiency of evidence, the weight given to expert reports, and the application of qualitative comparators such as s 8(b) which allows for "damage to the brain similar in effect and severity" to the specified indicators.

• Interpretation of clinical thresholds. The instrument sets numerical and anatomical thresholds, but their application may require clinical interpretation. Examples include the calculation of total body surface area for burns, the measurement of percentage femur or tibia loss for amputation thresholds, and the application of predicted pulmonary function values based on age, height and ethnicity for inhalation injury (s 10(b)). Disputes could focus on how those clinical measurements were determined and whether they meet the instrument’s threshold.

• Credentialing disputes. The FIMTM assessment must be carried out by a FIMTM credentialed professional (s 6(a) and s 5). Disagreements could arise about whether an assessor was properly credentialed, whether the credentialling standards used were appropriate, and whether the correct version of the FIMTM score sheet was applied.

• Use of fixed versions of clinical tools. Because the instrument fixes the versions of FIMTM and SMMSE as at commencement (s 5), disputes could turn on whether those versions were used, whether the assessment used a later version, and whether that affects the classification.

The instrument itself provides no record of litigation, but its text shows where litigation or administrative review is possible if parties contest Commission decisions on catastrophic classification.

The instrument contains a number of operational and interpretative features that can catch practitioners, claimants, clinicians and administrators if overlooked. These are concrete points arising directly from the instrument text.

1. Conjunctive test, single-item FIM trigger. The impairment limb requires a FIMTM credentialed assessment with a score of 5 or less on any single item of the FIMTM score sheet (s 6(a)). That means a low score on a single functional item can satisfy the impairment limb, but the matter will still fail unless the Commission is satisfied the condition is within one of the specified categories (s 6(b)). Practitioners should not assume a global low FIM is required; any single item at 5 or less suffices for that limb.

2. Fixed versions of the FIMTM and SMMSE. The instrument fixes the version of the FIMTM score sheet and the SMMSE tool to the versions as at commencement (s 5). Assessments must be referenced to those fixed versions. Using a later version of either instrument for an assessment may invite an argument that the assessment is not compliant with the instrument. The instrument additionally identifies the publishing bodies and provides links (s 5 note), but it does not provide a mechanism to adopt updated versions.

3. Commission satisfaction remains obligatory. Even where the FIMTM score threshold is reached, s 6(b) requires the Commission’s satisfaction that the injury/disease falls within the listed categories. The Commission’s satisfaction is an independent administrative gate. There is no automatic classification by virtue of evidence alone; an administrative satisfaction step remains.

4. Ambiguity and qualitative equivalence in brain injury. Section 8(b) permits classification where there is "damage to the brain similar in effect and severity" to the listed indicators in s 8(a). That phrase imports a qualitative comparability test. Practitioners should anticipate that evidence will be required to map the undisputed clinical features to those specified indicators and to demonstrate equivalence in effect and severity.

5. Age‑sensitive burn thresholds. Burn thresholds for full thickness burns differ by age: over 40 per cent total body surface area for persons aged 16 or above at time of injury; over 30 per cent for under 16s (s 10(a)(i)-(ii)). The instrument uses the age at the time of the injury or disease to determine threshold. Practitioners must ensure documentation records the person’s age at injury, not simply current age.

Compliance with the instrument for a claimant or their representative involves preparing and presenting evidence that addresses both conjunctive limbs in s 6. The following practical checklist derives directly from the instrument’s text and the criteria it requires.

1. Confirm compensability under the Act. The instrument applies only to injuries/diseases for which compensation is payable under the Act (s 5). Before proceeding, ensure the condition is a compensable injury or disease under the Act’s substantive eligibility rules.

2. Obtain a FIMTM assessment by a credentialed professional. Commission the Functional Independence Measure assessment from a FIMTM credentialed medical or health care professional. The FIMTM assessment must use the version of the FIMTM score sheet that existed on the day of commencement, as fixed by the instrument (s 5). Ensure the assessor’s credentialling records are obtainable and that the assessment records item-level scores so any item scoring 5 or less is demonstrable (s 6(a)).

3. Collect specific clinical evidence for the relevant catastrophic category. Identify which of the five categories in s 6(b)(i)-(v) best fits the claimant’s condition and compile the required evidence:

• Nerve injury (s 7): Provide documentation of lesion location (spinal cord, cauda equina, brachial plexus, lumbosacral plexus, cervical plexus or coccygeal plexus) and demonstrable sensory deficit, motor deficit, bladder dysfunction, or bowel dysfunction. Specialist neurology/neurosurgery reports, electrophysiology and urological/gastroenterological evidence will be relevant.

• Brain injury (s 8): Provide evidence of impairment to cognitive, physical or psychosocial functions and at least one of: post traumatic amnesia of at least seven days with contemporaneous records, significant brain imaging abnormality (radiology reports), or SMMSE score of less than 25 using the version fixed by the instrument (s 5 and s 8(a)). If relying on s 8(b), prepare comparative evidence explaining how the damage is similar in effect and severity to the listed indicators.

• Amputation (s 9): Provide operative notes, imaging, or specialist reports showing the anatomical level of amputation. Show that the amputation is one of the listed major types (forequarter, shoulder disarticulation, hindquarter, hip disarticulation) or involves loss of at least 65 per cent of femur length, or that the loss comprises at least two of the listed items in s 9(b). Include measurements and, where necessary, pre- and post-op imaging to demonstrate percentage loss.