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ICD-9-CM diagnosis code (retired)

863.51 — Injury to ascending [right] colon, with open wound into cavity

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 863.51

863.51 is an ICD-9-CM diagnosis code for injury to ascending [right] colon, with open wound into cavity. 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 S31.609A (Unspecified open wound of abdominal wall, unspecified quadrant with penetration into peritoneal cavity, initial encounter) and S36.500A (Unspecified injury of ascending [right] colon, initial encounter). 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 863.51

What is the ICD-10 code for ICD-9 863.51?

The GEMs map 863.51 to ICD-10-CM S31.609A and S36.500A.

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.