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
531 Gastric ulcer →
section notes
531.4 Chronic or unspecified gastric ulcer; with hemorrhage →
section notes
531.40   Chr stomach ulc w hem
531.41   Chr stom ulc w hem-obstr
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