532 Duodenal ulcer
Includes: erosion (acute) of duodenum
ulcer (peptic):
duodenum
postpyloric
Use additional E code to identify drug, if drug-induced
Excludes: peptic ulcer NOS (533.0-533.9)
The following fifth-digit subclassification is for use with category 532:
0 without mention of obstruction
1 with obstruction
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