4.1 The criteria for the grant of the DSP
18 Section 94 of the Social Security Act relevantly provides:
(1) A person is qualified for disability support pension if:
(a) the person has a physical, intellectual or psychiatric impairment; and
(b) the person's impairment is of 20 points or more under the Impairment Tables…
19 By subs 23(1) of the Social Security Act, "Impairment Tables" means the tables determined by an instrument made under subs 26(1) of the Social Security Act.
20 Section 26 in turn provides:
(1) The Minister may, by legislative instrument, determine tables relating to the assessment of work related impairment for disability support pension.
(2) An instrument under subsection (1) may contain such ancillary or incidental provisions relating to those tables as the Minister considers appropriate.
Rules for applying Impairment Tables
(3) The Minister may, in an instrument under subsection (1), determine rules that are to be complied with in applying the tables referred to in subsection (1) and the provisions referred to in subsection (2).
(4) An instrument under subsection (1) may contain such ancillary or incidental provisions relating to those rules as the Minister considers appropriate.
21 Relevantly, the Minister made the Impairment Tables under subs 26(1). Section 3 of the Impairment Tables defines "impairment" to mean "a loss of functional capacity affecting a person's ability to work that results from the person's condition." Condition is defined to mean "a medical condition".
22 Under subs 6(3) of the Impairment Tables, an impairment rating can be assigned to an impairment only if:
(1) the person's condition causing that impairment is permanent; and
(2) the impairment that results from that condition is more likely than not, in light of available evidence, to persist for more than 2 years.
23 The term "permanent" is defined in subss 6(4) to 6(7) of the Impairment Tables by reference to whether the condition has been fully diagnosed and fully treated and whether it has fully stabilised, namely:
Permanency of conditions
(4) For the purposes of paragraph 6(3)(a) a condition is permanent if:
(a) the condition has been fully diagnosed by an appropriately qualified medical practitioner; and
(b) the condition has been fully treated; and
Note: For fully diagnosed and fully treated see subsection 6(5).
(c) the condition has been fully stabilised; and
Note: For fully stabilised see subsection 6(6).
(d) the condition is more likely than not, in light of available evidence, to persist for more than 2 years.
24 As the notes to subs (4) state, subs (5) and (6) define when a condition is fully diagnosed, fully treated and fully stabilised for the purposes of the definition of "permanent" as follows:
Fully diagnosed and fully treated
(5) In determining whether a condition has been fully diagnosed by an appropriately qualified medical practitioner and whether it has been fully treated for the purposes of paragraphs 6(4)(a) and (b), the following is to be considered:
(a) whether there is corroborating evidence of the condition; and
(b) what treatment or rehabilitation has occurred in relation to the condition; and
(c) whether treatment is continuing or is planned in the next 2 years.
Fully stabilised
(6) For the purposes of paragraph 6(4)(c) and subsection 11(4) a condition is fully stabilised if:
(a) either the person has undertaken reasonable treatment for the condition and any further reasonable treatment is unlikely to result in significant functional improvement to a level enabling the person to undertake work in the next 2 years; or
(b) the person has not undertaken reasonable treatment for the condition and:
(i) significant functional improvement to a level enabling the person to undertake work in the next 2 years is not expected to result, even if the person undertakes reasonable treatment; or
(ii) there is a medical or other compelling reason for the person not to undertake reasonable treatment.
Note: For reasonable treatment see subsection 6(7).
Reasonable treatment
(7) For the purposes of subsection 6(6), reasonable treatment is treatment that:
(a) is available at a location reasonably accessible to the person; and
(b) is at a reasonable cost; and
(c) can reliably be expected to result in a substantial improvement in functional capacity; and
(d) is regularly undertaken or performed; and
(e) has a high success rate; and
(f) carries a low risk to the person.
25 The Social Security (Administration) Act 1999 (Cth) (the Administration Act) provides for the determination of social security claims, including for the DSP, and the commencement of those payments. A social security payment ordinarily becomes payable to a person on the person's start day (subs 41(1)), which is generally the day on which the claim is made (s 42 and sch 2, cl 3(1), Administration Act). However, as the Secretary submits, if the person is not qualified for the payment on that day but becomes qualified within 13 weeks of that date, the claim is taken to have been made on the first day on which the person is qualified for the social security payment (s 42 and sch 2, cl 4(1), Administration Act).
26 It follows that the respondent's entitlement to the DSP must be considered as at the date of his claim and in the 13 weeks thereafter, and that any change in the respondent's health after that 13 week period is irrelevant save insofar as it may cast light on the position at the relevant time: see Harris v Secretary, Department of Employment and Workplace Relations [2007] FCA 404; (2007) 158 FCR 252 at [1] (Gyles J) (upheld on appeal in Secretary, Department of Employment and Workplace Relations v Harris [2007] FCAFC 130; (2007) 97 ALD 534) and Gallacher v Secretary, Department Of Social Services [2015] FCA 1123 at [25]-[29] (Besanko J).