ICD-9-CM diagnosis code (retired)
847.1 — Sprain of thoracic
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 847.1
847.1 is an ICD-9-CM diagnosis code for sprain of thoracic. 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 S23.3XXA (Sprain of ligaments of thoracic spine, initial encounter) and S23.8XXA (Sprain of other specified parts of thorax, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 847.1
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.