Table 3.

Five most frequent CCS principal procedure categories^a and DRG codes of Medicare beneficiaries with and without CAUTI who were discharged from a hospitalization in 2009.

Code	Procedure category	DRG weight (FY09)	ICUb				non-ICU
			Cases		Controls		Cases		Controls
			n= 550		n= 2740		n= 334		n= 1670
			n	rank	n	rank	n	rank	n	rank
216	Respiratory intubation and mechanical ventilation		51	1	255	1	11	5	55	5
34	Tracheostomy; temporary and permanent		45	2	225	2	≤10c		20	18
.	No procedure		33	3	165	3	75	1	375	1
1	Incision and excision of CNS		24	4	120	4	≤10c		≤10c
43	Heart valve procedures		21	5	105	5	≤10c		35	9
54	Other vascular catheterization; not heart		15	10	75	10	14	4	70	4
146	Treatment; fracture or dislocation of hip and femur		14	11	70	11	27	2	135	2
153	Hip replacement; total and partial		≤10c		40	20	26	3	130	3
	DRG title
3	ECMO or trach w MV 96+ hrs or PDX exc face, mouth & neck w maj O.R.	18.4	72	1	116	3	≤10c		≤10c
4	Trach w MV 96+ hrs or PDX exc face, mouth & neck w/o maj O.R.	11.1	34	2	187	1	≤10c		17	26
64	Intracranial hemorrhage or cerebral infarction w MCC	1.8	17	3	73	5	≤10c		17	26
329	Major small & large bowel procedures w MCC	5.2	16	4	100	4	≤10c		12	41
291	Heart failure & shock w MCC	1.5	14	5	46	11	16	3	33	6
280	Acute myocardial infarction, discharged alive w MCC	1.9	14	5	38	18	≤10c		13	38
682	Renal failure w MCC	1.6	11	8	34	20	≤10c		15	33
377	G.I. hemorrhage w MCC	1.6	≤10c		43	13	≤10c		≤10c
871	Septicemia or severe sepsis w/o MV 96+ hours w MCC	1.8	≤10c		118	2	≤10c		52	3
65	Intracranial hemorrhage or cerebral infarction w CC	1.2	≤10c		42	15	≤10c		≤10c	58
481	Hip & femur procedures except major joint w CC	1.8	≤10c		26	31	20	2	76	2
470	Major joint replacement or reattachment of lower extremity w/o MCC	2.0	≤10c		27	28	23	1	156	1
683	Renal failure w CC	1.1	≤10c		19	41	≤10c		20	22
482	Hip & femur procedures except major joint w/o CC/MCC	1.5	≤10c		≤10		≤10c		37	4
690	Kidney & urinary tract infections w/o MCC	0.8	≤10c		≤10		≤10c		36	5

Abbreviations: CAUTI, catheter-associated urinary tract infection; ICU, intensive care unit; CCS, Clinical Classifications Software; DRG, Diagnosis Related Group.

^aAgency for Healthcare Research and Quality Clinical Classifications Software¹⁷ single-level procedure category of the primary International Classification of Diseases, Ninth Revision, Clinical Modification procedure code.

^bICU: Beneficiaries admitted to the ICU any time during the hospital stay.

^cIn accordance with the CMS data use agreement, actual number and corresponding rank were not displayed when cell sizes ≤10.