Accuracy of an administrative database for pancreatic cancer by international classification of disease 10th codes: A retrospective large-cohort study

Table 5 Diagnostic accuracy of pancreatic cancer according to tumor sites by the international classification of diseases, 10^th revision edition

ICD codes	Overall diagnosis		Definite diagnosis				Possible diagnosis
	True (+)1	False (+)2	Total	True (+)	False (+)	Total	True (+)	False (+)	Total
Cell types	234	0	234	164	0	164	70	0	70
C251	71	1	72	30	1	31	41	0	41
C252	104	0	104	48	0	48	56	0	56
C253	5	0	5	2	0	2	3	0	3
C254	2	0	2	2	0	2	0	0	0
C257	1	0	1	1	0	1	0	0	0
C259	1405	23	1428	657	5	662	748	18	766
	1822	24	1846	904	6	910	918	18	936

¹Real cancer patients with ICD 10th codes of cancer.

²No cancer patients with ICD 10th codes of cancer. ICD: International classification of disease.