ICD-9-CM diagnosis code (retired)
998.7 — Acute reaction to foreign substance accidentally left during a procedure
About ICD-9-CM 998.7
998.7 is an ICD-9-CM diagnosis code for acute reaction to foreign substance accidentally left during a procedure. 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 T81.61XA (Aseptic peritonitis due to foreign substance accidentally left during a procedure, initial encounter) and T81.69XA (Other acute reaction to foreign substance accidentally left during a procedure, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 998.7
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.