Document ID: chunk:federal_register_of_legislation:F2023C00151:reg:54:p4
Version: federal_register_of_legislation:F2023C00151
Segment Type: reg
Provision Reference: reg 54 (pt 4/36)
Character Range: 80095–83267

with the total cardiorespiratory functional impairment rating (obtained in Step 5) and the higher of the two is to be chosen.

Step 7: Moderate the total cardiorespiratory functional impairment rating to allow for effects of any non-accepted conditions.

Partially contributing impairment

If non-accepted conditions contribute to the impairment, Chapter 19 (Partially Contributing Impairment) is to be applied to determine impairment from the accepted conditions.

If cardiac conditions exist in the absence of respiratory disease: if there is more than one cardiac condition present (for example ischaemic heart disease and a valvular heart disease) and some are accepted and some are not accepted, then the total cardiorespiratory functional impairment rating must be moderated by applying Chapter 19 to determine the impairment due to the accepted condition.

If a respiratory condition exists in the absence of cardiac disease, the symptomatic activity level will generally be the exercise level (in METs) at which dyspnoea occurs. If there is more than one respiratory condition present and at least one is accepted and at least one is not accepted, then the total cardiorespiratory functional impairment rating must be moderated by applying Chapter 19 to determine the impairment due to the accepted condition or conditions.

If cardiac and respiratory conditions co-exist, and at least one is accepted and at least one is not accepted, it is necessary to determine the total cardiorespiratory functional impairment rating (as set out in the previous steps), and then to moderate that rating by applying Chapter 19 to determine the impairment due to the accepted condition.

The result that is then derived is the "total accepted cardiorespiratory functional impairment rating".

Step 8: Determine whether any ratings from the cardiorespiratory Other Impairment tables apply.

Cardiorespiratory Other Impairment tables

Once the total accepted cardiorespiratory functional impairment rating has been determined, it must be compared with the relevant cardiorespiratory Other Impairment tables. For assessment purposes, four categories of cardiorespiratory condition are recognised. These categories are:
    ischaemic heart disease;
    valvular heart disease;
    miscellaneous heart disease; and
    lower respiratory tract conditions.

There are four cardiorespiratory Other Impairment tables — corresponding to each of the above categories. These tables are:
Table 1.7 — Cardiorespiratory Impairment: Ischaemic;
Table 1.8 — Cardiorespiratory Impairment: Valvular;
Table 1.9 — Cardiorespiratory Impairment: Miscellaneous; and
Table 1.10 — Cardiorespiratory Impairment: Respiratory.

Only one rating is to be selected from each of these cardiorespiratory Other Impairment tables (Tables 1.7, 1.8, 1.9, and 1.10) for any condition or combination of conditions.

If accepted conditions belonging to more than one of the four categories of cardiorespiratory disease above are present, then the relative contribution of their effect on the total accepted cardiorespiratory functional impairment must be estimated by applying Chapter 20 (Apportionment).