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Section C - Supplementary Information

Variable (Column Heading)	Label	Description
Victorian DRG	VIC-DRG3	Victorian modification to AN-DRG3.1.
Same day medical target	sdmt	VIC-DRG3s marked with a "Y" are classed as same day medical target VIC-DRG3s. VIC-DRG3s marked with "N" are not classed as same day medical target VIC-DRG3s. WIES for same day patients allocated to same day medical target VIC-DRG3s are calculated normally but the total WIES associated with same day patients in these VIC-DRG3s cannot exceed specified levels (usually 6.5% of total WIES). Excess same day medical target WIES are not funded.
Mechanical ventilation	mv_elig	This describes the way mechanical ventilation severity co-payments are made for the VIC-DRG3. Options are :- D: funded for each day provided at least six hours of ventilation is provided. Patients attract a daily rate of 0.7729 WIES E: patients with a reported ICD-10-AM procedure code of 13382-02 are funded an additional 3.1323 WIES 4: funded for each day of mechanical ventilation after 4 days. Patients attract a daily rate of 0.7729 WIES. I: ineligible for mechanical ventilation co-payments
Other co-payments	copay	Some groups of patients attract additional funds in recognition of their higher costs. Options are:- Thal.: a co-payment of 0.2648 WIES is made to patients with a reported ICD-10-AM thalessaemia diagnosis code of D56.x or D57.2 (Note: These do not have to be principal diagnoses) Redo : a co-payment of 0.9108 WIES is made to patients with an ICD-10-AM procedure code for hip revision (49324-00).
Low inlier boundary	lb	The low length of stay boundary for inliers. Patients with a length of stay of less than the low boundary are classed as low outliers. For most VIC-DRG3s the low boundary has been set at a third of the estimated average length of stay for the VIC-DRG3. Boundaries are truncated to the nearest whole number.
High inlier boundary	hb	The high length of stay boundary for inliers. Patients with a length of stay greater than the high boundary are classed as high outliers. For most VIC-DRG3s the high boundary has been set at three times the estimated average length of stay for the VIC-DRG3. Boundaries are rounded to the nearest whole number.
Inlier average length of stay	i_alos	The average length of stay (days) for inliers.
Weight type	wght_tp	In the table printed in this report total (T), fixed (F) and variable (V) weights are presented as separate rows. "A" is used where all weights are equal. In the lookup files provided by the Department separate columns occur for total, fixed and variable weights so this variable "A" is not required.
VIC-DRG3 designation	sd_od	Flag for designated sameday (S) or one day (O) VIC-DRG3s
Same day weight	sd_x where x = t,v or f	The same day weight is used to allocate WIES to episodes where patients are admitted and separated on the same day. Depending upon the VIC-DRG3, same day patients may be either low outliers or inliers:- Designated Same day VIC-DRG3s The same day weight is based on the costs of same day patients. Non-Same Day VIC-DRG3s with a low boundary of zero days The same day weight is set at the multiday inlier weight. Non-Same Day VIC-DRG3s with a low boundary of 1 day The same day weight is set at half the multiday inlier weight Non-Same Day VIC-DRG3s with a low boundary of 2 days or more (low outliers) The same day weight is set at half of the multiday inlier weight divided by the low boundary (0.5´ md_in_x ¸ lb)
One day weight	od_x where x = t,v or f	The one day weight is used to allocated WIES to episodes where patients have a length of stay of one but who were not separated on the same day as they were admitted. Depending upon the VIC-DRG3, one day patients may be either low outliers or inliers:- Designated Same day VIC-DRG3s The one day weight is based on the costs of all inliers excluding same day patients. If the patient is an inlier they attract the full multiday inlier weight. If the patient is a low outlier they attract the low outlier per diem weight. Designated One day VIC-DRG3s The one day weight is based on the costs of patients with a length of stay of one day. Non-Same/One Day VIC-DRG3s with a low boundary of 1 day or less The one day weight is set at the multiday inlier weight. Non-Same/One Day VIC-DRG3s with a low boundary of 2 day or more (low outliers) The one day weight is set at the low outlier per diem weight.
Low outlier multiday per diem weight	lo_pd_x where x = t,v or f	The low outlier multiday per diem weight is used to allocate WIES to low outliers who have a length of stay of at least two days. Different weights are provided for total, fixed and variable WIES. Not all VIC-DRG3s have low outliers. No weight is reported in these cases. For most VIC-DRG3s the weight is derived as: md_in divided by lb The WIES value is calculated by multiplying the low outlier multiday per diem weight by the patient’s length of stay.
Inlier multiday weight	md_in__x where x = t,v or f	The inlier multiday weight is used to allocate WIES to inliers who have a length of stay of at least two days. For designated VIC-DRG3s, same day/one day patients are excluded when deriving the inlier multiday weight.
high outlier multiday per diem	ho_pd_x where x = t,v or f	The high outlier multiday per diem weight is used to allocate additional WIES for all days of stay in excess of the high boundary after adjusting for any mechanical ventilation co-payment days. In general this is derived from: high factor ´ In_md_x divided by estimated alos where the high factor is set at 0.7 for surgical VIC-DRG3s and 0.8 for medical VIC-DRG3s to recognise that the days at the end of a patients stay are less resource intensive than days at the beginning of a patients stay. A number of variations exist on the general formula:- 1) The high factor is set at one or greater for some high cost VIC-DRG3s (Chaper 12). 2) Theatre and prostheses costs are excluded from the calculation of the weight for some VIC-DRG3s with high costs in these areas (Chapter 12). 3) Maximum and minimum criteria apply (Chapter 12).