ICD 9 CM Codes

Additional
The following fifth-digit subclassification is for use with category 203:
0 without mention of having achieved remission
failed remission
1 in remission
2 in relapse
530 Diseases of esophagus
531 Gastric ulcer
532 Duodenal ulcer
533 Peptic ulcer, site unspecified
534 Gastrojejunal ulcer
535 Gastritis and duodenitis
536 Disorders of function of stomach
537 Other disorders of stomach and duodenum
538 Gastrointestinal mucositis (ulcerative)
539 Complications of bariatric procedures