ICD-9-CM diagnosis code (retired)
830.1 — Open dislocation of jaw
About ICD-9-CM 830.1
830.1 is an ICD-9-CM diagnosis code for open dislocation of jaw. 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 S01.409A (Unspecified open wound of unspecified cheek and temporomandibular area, initial encounter) and S03.00XA (Dislocation of jaw, unspecified side, 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 830.1
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.