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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Pharmacoepidemiol Drug Saf. 2011 Aug 27;20(11):1150–1158. doi: 10.1002/pds.2215

APPENDIX.

ICD-9-CM and CPT-4 Codes Used to Identify GI Perforations

GI Site Code Source and Number Code Type and Description
Esophagus

ICD-9-CM Diagnosis Code

530.4 Perforation of esophagus

Stomach

ICD-9-CM Diagnosis Code

531.1 Acute gastric ulcer with perforation
531.2 Acute gastric ulcer with hemorrhage and perforation
531.5 Chronic or unspecified gastric ulcer with perforation
531.6 Chronic or unspecified gastric ulcer with hemorrhage and perforation
532.1 Acute duodenal ulcer with perforation
532.2 Acute duodenal ulcer with hemorrhage and perforation
532.5 Chronic or unspecified duodenal ulcer with perforation
532.6 Chronic or unspecified duodenal ulcer with hemorrhage and perforation
533.1 Peptic ulcer, site unspecified: acute with perforation
533.2 Peptic ulcer, site unspecified: acute with hemorrhage and perforation
533.5 Peptic ulcer, chronic or unspecified with perforation
533.6 Peptic ulcer, chronic or unspecified with hemorrhage and perforation

Small intestine

ICD-9-CM Diagnosis Code

534.1 Acute gastrojejunal ulcer with perforation
534.2 Acute gastrojejunal ulcer with hemorrhage and perforation
534.5 Chronic or unspecified gastrojejunal ulcer with perforation
534.6 Chronic or unspecified gastrojejunal ulcer with hemorrhage and perforation
557 Acute ischemic colitis
557.1 Chronic ischemic colitis
557.9 Unspecific ischemic colitis
562 Diverticulosis/diverticulitis of small intestine

CPT-4 Procedure Code

44602 Suture of small intestine
44603 Suture of small intestine
44120 Resection of small intestine
44121 Resection of small intestine
44125 Resection of small intestine
44130 Resection of small intestine
44202 Resection of small intestine
44203 Resection of small intestine

Large Intestine

ICD-9-CM Diagnosis Code

540 Appendicitis, acute with perforation and generalized peritonitis
557 Acute ischemic colitis
557.1 Chronic ischemic colitis
557.9 Unspecific ischemic colitis
562.1 Diverticulosis/diverticulitis of large intestine

CPT-4 Procedure Code

44604 Suture of large intestine
44605 Suture of large intestine
44140 Partial colectomy with anastomosis
44145 Partial colectomy with anastomosis
44204 Partial colectomy with anastomosis
44205 Partial colectomy with anastomosis

Unspecified lower GI

ICD-9-CM Diagnosis Code

569.83 Perforation of intestine