Table B. Average annual number of discharges among aged Medicare enrollees for selected procedures, by age and sex: 1979-80.

Procedure and sex	ICD-9-CM1 codes	All ages	65-74 years	75-84 years	85 years or over
	Number of discharges
Prostatectomy (TURP) (Male only)	60.2	119,308	67,213	42,308	9,788
Cholecystectomy	51.2	89,898	56,550	27,320	6,028
Male		31,913	20,675	9,408	1,830
Female		57,985	35,875	17,912	4,198
Inguinal hernia repair	53.0,53.1	84,525	51,968	27,020	5,538
Male		74,298	46,953	23,030	4,315
Female		10,228	5,015	3,990	1,223
Lens extraction	13.1-13.6,	277,678	128,355	117,938	31,385
Male	13.71	100,498	52,373	38,943	9,183
Female		117,180	75,983	78,995	22,203
Femur fracture reduction	79.05, 79.15	52,335	12,580	22,550	17,205
Male	79.25, 79.35	11,198	3,565	4,678	2,955
Female		41,138	9,015	17,873	14,250
Coronary artery bypass	36.1	15,845	14,195	1,615	(Less than 60)
Male		11,093	10,008	1,073
Female		4,753	4,188	543
Hip arthroplasty (total replacement)	81.5	25,470	14,910	8,895	1,665
Male		8,728	5,685	2,698	345
Female		16,743	9,225	6,198	1,320
Hip arthroplasty (other)	81.6	45,820	13,028	20,150	12,643
Male		9,808	3,560	3,975	2,273
Female		36,013	9,468	16,175	10,370

¹International Classification of Diseases, Ninth Revision, Clinical Modification.

NOTES: Data are from a 20-percent sample of Medicare hospital discharges. Counts have been multiplied by 5 to estimate totals. Data exclude discharges with a principal diagnosis of cancer.

SOURCE: Health Care Financing Administration, Bureau of Data Management and Strategy: Data from the Medicare Statistical System.