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ICD-9-CM diagnosis code (retired)

532.31 — Acute duodenal ulcer without mention of hemorrhage or perforation, with obstruction

ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.

About ICD-9-CM 532.31

532.31 is an ICD-9-CM diagnosis code for acute duodenal ulcer without mention of hemorrhage or perforation, with obstruction. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to 2 ICD-10-CM codes, such as K26.3 (Acute duodenal ulcer without hemorrhage or perforation) and K56.699 (Other intestinal obstruction unspecified as to partial versus complete obstruction). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.

ICD-10-CM equivalents

Common questions about 532.31

What is the ICD-10 code for ICD-9 532.31?

The GEMs map 532.31 to ICD-10-CM K26.3 and K56.699.

GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.