Table 1.

The top 30 ICPC-2 reason for encounter titles in the General Internal Medicine Department of Chikusei City Hospital, Chikusei City, Japan

Order	ICPC-2 code7	ICPC-2 title	n	%	Cumulative %
1	R05	Cough	245	10.9	10.9
2	A03	Fever	215	9.5	20.4
3	A91	Abnormal result investigation NOS	182	8.1	28.5
4	R21	Throat symptom/complaint	144	6.4	34.9
5	N01	Headache	127	5.6	40.5
6	D06	Abdominal pain localized other	95	4.2	44.8
7	D11	Diarrhea	85	3.8	48.5
8	R07	Sneezing/nasal congestion	80	3.6	52.1
9	A04	Weakness/general tiredness	72	3.2	55.3
10	N17	Vertigo/dizziness	70	3.1	58.4
11	D09	Nausea	53	2.4	60.7
12	R02	Shortness of breath/dyspnea	51	2.3	63.0
13	D10	Vomiting	43	1.9	64.9
14	R74	Upper respiratory infection acute	37	1.6	66.6
15	K86	Hypertension uncomplicated	36	1.6	68.2
16	D02	Abdominal pain epigastria	35	1.6	69.7
17	A11	Chest pain NOS	27	1.2	70.9
18	T03	Loss of appetite	26	1.2	72.1
19	K04	Palpitations/awareness of heart	24	1.1	73.1
20	N06	Sensation disturbance other	21	0.9	74.1
21	D12	Constipation	18	0.8	74.9
22	L01	Neck symptom/complaint	15	0.7	75.5
22	L02	Back symptom/complaint	15	0.7	76.2
24	A02	Chills	14	0.6	76.8
24	L03	Low back symptom/complaint	14	0.6	77.4
24	S04	Lump/swelling localized	14	0.6	78.1
27	P06	Sleep disturbance	13	0.6	78.6
27	T08	Weight loss	13	0.6	79.2
29	A01	Pain general/multiple sites	12	0.5	79.8
29	D03	Heartburn	12	0.5	80.3
		Others	444	19.7	100.0
Total			2,252	100.0

Notes: Where different reasons for encounter have the same order number, this is because they also have the same percentage and number of occurrences.

Abbreviations: ICPC-2, International Classification of Primary Care, 2nd edition; NOS, not otherwise specified.