ICD-9-CM Vol. 1 Diagnostic Codes →
9. DISEASES OF THE DIGESTIVE SYSTEM (520-579) →
section notes
DISEASES OF ESOPHAGUS, STOMACH, AND DUODENUM (530-539) →
section notes
534 Gastrojejunal ulcer →
section notes
534.4 Chronic or unspecified gastrojejunal ulcer; with hemorrhage →
section notes
534.40   Chr marginal ulcer w hem
534.41   Chr margin ulc w hem-obs
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