duodenal disorder peptic ulcer disease duodenal ulcer https://www.malacards.org/card/duodenal_ulcer duodenal ulcer (disease) An ulcer in the duodenal wall. duodenal ulcer (disease) NCIT:C26755 SCTID:39755000 EFO:0004607 ICD10WHO:K26 ICD9:532 MEDGEN:41670 stress Ulcer MONDO:0005412 HP:0002588 DOID:1724 ICD10CM:K26 MESH:D004381 UMLS:C0013295 icd11.foundation:553678663