Table 3 Numbers of patients with discharge diagnoses that include ARDS and ventilatory support descriptors

From: Acute respiratory distress syndrome: estimated incidence and mortality rate in a 5 million-person population base

		1992	1993	1994	1995
1	Hospital discharges	629,881	621,209	625,020	625,037
2	ICD-9 518.5 only^*	217	162	139	161
3	ICD-9 518.82 only^*	97	71	69	58
4	518.5 + 96.71^†
	ventilator < 4 days
	(expired/total)	10/35	27/116	32/158	42/179
5	518.5 + 96.72^†
	ventilator > 4 days	72	245	315	296
6	518.82 + 96.71^†
	ventilator < 4 days
	(expired/total)	9/30	28/68	19/74	24/78
7	518.82 + 96.72^†
	ventilator > 4 days	68	139	165	167
8	518.5 + 96.70^†
	ventilator duration NOS	0	1	2	3
9	518.82 + 96.70^†
	ventilator NOS	0	0	5	1
	Total	519	802	927	942

NOS = not otherwise specified. ^*Patients coded for ARDS without further descriptors; ^†procedure codes 96.70, 96.71 and 96.72 were established in October 1991.

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ISSN: 1364-8535

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