Table 1

Hospital admissions for chlamydia related diseases in men and women aged 15–34 years, New South Wales, 1992–2001

Diagnosis (ICD codes)*	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
*Coding for admission diagnoses changed from the 9th (numeric codes) to the 10th (alphanumeric codes) revision of the International Statistical Classification of Diseases (ICD), Australian modification, in 1998.
†In ICD9, both chronic and unspecified parametritis and pelvic cellulitis were classified together (614.4). In ICD10, they are classified separately (N73.1 and N73.2).
Acute PID
Acute salpingitis and oophoritis (614.0, N70.0)	30	33	16	20	20	17	22	23	15	19
Acute inflammatory diseases of the uterus (615.0, N71.0)	29	37	16	31	16	28	34	38	23	17
Acute parametritis and pelvic cellulitis (614.3, N73.0)	31	44	50	46	46	29	44	44	54	54
Subtotal	90	114	82	97	82	74	100	105	92	90
Chronic PID
Chronic salpingitis and oophoritis (614.1, N70.1)	112	86	96	119	89	70	79	95	79	71
Chronic inflammatory diseases of the uterus (615.1, N71.1)	138	141	95	130	89	97	93	88	66	53
Chronic parametritis and pelvic cellulitis (614.4, N73.1)†	65	66	84	83	44	30	37	37	34	35
Subtotal	315	293	275	332	222	197	209	220	179	159
PID of unspecified duration
Salpingitis and oophoritis of unspecified duration (614.2, N70.9)	153	120	111	83	61	68	54	60	43	41
Inflammatory diseases of the uterus of unspecified duration (615.9, N71.9)	147	134	122	93	92	46	0	0	0	0
Parametritis and pelvic cellulitis of unspecified duration (N73.2)†	–	–	–	–	–	13	2	4	2	1
Inflammatory disease of the ovary, fallopian tube, pelvic cellular tissue and peritoneum (614.8, 614.9, N73.8, N73.9, N74.4)	824	727	679	562	517	450	472	325	346	301
Subtotal	1124	981	912	738	670	577	528	389	391	343
Total	1529	1388	1269	1167	974	848	837	714	662	592
Ectopic pregnancy
Tubal (633.1, O00.1)	1053	955	940	929	889	882	888	856	879	813
Other or unspecified (633.2, 633.8, 633.9, O00.2, O00.8, O00.9)	166	189	161	141	149	152	145	174	168	182
Total	1219	1144	1101	1070	1038	1034	1033	1030	1047	995
Epididymo-orchitis
Without abscess (604.90, 604.99, N45.9)	304	309	349	347	350	372	280	295	307	280
With abscess (604.0, N45.0)	13	10	7	6	9	10	9	4	11	7
Total	317	319	356	353	359	382	289	299	318	287