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ICD-9-CM diagnosis code (retired)

998.4 — Foreign body accidentally left during a procedure

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 998.4

998.4 is an ICD-9-CM diagnosis code for foreign body 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 4 ICD-10-CM codes, such as T81.509A (Unspecified complication of foreign body accidentally left in body following unspecified procedure, initial encounter), T81.519A (Adhesions due to foreign body accidentally left in body following unspecified procedure, initial encounter) and T81.529A (Obstruction due to foreign body accidentally left in body following unspecified 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 998.4

What is the ICD-10 code for ICD-9 998.4?

The GEMs map 998.4 to ICD-10-CM T81.509A, T81.519A, T81.529A and T81.539A.

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.