ICD-9-CM diagnosis code (retired)
931 — Foreign body in ear
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 931
931 is an ICD-9-CM diagnosis code for foreign body in ear. 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 3 ICD-10-CM codes, such as T16.1XXA (Foreign body in right ear, initial encounter), T16.2XXA (Foreign body in left ear, initial encounter) and T16.9XXA (Foreign body in ear, unspecified ear, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 931
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.