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2009 ICD-9-CM
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531 Gastric ulcer
Includes: ulcer (peptic):
prepyloric
pylorus
stomach
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 531:
0 without mention of obstruction
1 with obstruction |