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Table 2 Codes searched for in the national register

From: Decreasing incidence of peptic ulcer complications after the introduction of the proton pump inhibitors, a study of the Swedish population from 1974–2002

Ulcer complication ICD 8
(-1986)
ICD 9
(1987–96)
ICD 10
(1997-)
Perforated gastric ulcer 53100, 53101 5311, 5312
5315, 5316
K251, K252
K255, K256
Perforated duodenal ulcer 53200 5321, 5322
5325, 5326
K261, K262
K265, K266
Other perforated ulcer 53300, 53400 5331, 5332
5335, 5336
5341, 5342
5345, 5346
K271, K272
K275, K276
K281, K282
K285, K286
Bleeding gastric ulcer 53190, 53193 5310, 5312
5314, 5316
K250, K252
K254, K256
Bleeding duodenal ulcer 53290 5320, 5322
5324, 5326
K260, K262
K264, K266
Other bleeding ulcer 53390, 53490 5330, 5332
5334, 5336
5340, 5342
5344, 5346
K270, K272
K274, K276
K280, K282
K284, K286