Interdisciplinary Perspectives on Infectious Diseases

Research Article

The Economic Burden of Infective Endocarditis due to Injection Drug Use in Australia: A Single Centre Study—University Hospital Geelong, Barwon Health, Victoria

Table 1

Cost per admission as derived from DRG (diagnosis related group) and WIES (weighted inlier equivalent separation) calculations.


Patient episode	Length of stay (days)	DRG (diagnosis related groups), category	Cost ($AUD) based on 2015/2016 WIES

1	27	F61Z, infective endocarditis (IE)	—
2	20	F61Z, Z63A, IE and other aftercare with catastrophic or severe complication or comorbidity (CC)	23,405
3	64	A06Z, IE, tracheostomy or ventilation >95 hrs	119,927
4	41	F03Z, cardiac valve procedure, CPB pump, invasive cardiac investigation	59,155
5	30	F61Z, IE	20,415
6	5	A06B, tracheostomy with ventilation >95 hours without catastrophic CC or trach/vent >95 hrs with catastrophic CC	30,559
7	34	F03A, cardiac valve proc with CPB pump with invasive cardiac investigation with catastrophic (cat) CC (complication or comorbidity)	68,670
8	52	F06A, coronary by-pass without invasive cardiac investigation with catastrophic or severe CC	74,336
9	26	F03A, cardiac valve proc CPB pump with invasive cardiac investigation with catastrophic complication or comorbidity	63,571
10	33	A06A, tracheostomy with ventilation >95 hours with catastrophic CC	168,361
11	68	F04A, cardiac valve proc with CPB pump without invasive cardiac investigation with catastrophic CC	95,953
12	47	A06A, tracheostomy with ventilation >95 hours with catastrophic CC	182,285
13	48	F04A, cardiac valve procedure with CPB pump without invasive cardiac investigation with catastrophic CC	66,592
14	20	F61A, infective endocarditis with catastrophic complication or comorbidity	30,097
15	24	F43Z, circulatory system diagnosis with non-invasive ventilation	17,327
16	49	E62A, I27A, respiratory infection/inflammation and soft tissues procedures with CC	30,435
17	1	F42C, IE	2806
18	39	E62A, respiratory infection and inflammation	23,170
19	119	A06A, tracheostomy with ventilation >95 hours and CC	266,357
20	45	A06A, tracheostomy with ventilation >95 hours and CC	171,841
21	43	F04A, F61A, infective endocarditis with CC	64,591
22	6	A06C, tracheostomy and ventilation	33,942
23	10	T64A IE and other infectious diseases and parasitic diseases with CC	14,564
Total			1,628,359.00
Median cost per admission			61363.00

IE, infective endocarditis, CC, complication or comorbidity.