ICD-9-CM diagnosis code (retired)
839.02 — Closed dislocation, second cervical vertebra
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 839.02
839.02 is an ICD-9-CM diagnosis code for closed dislocation, second cervical vertebra. 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 one ICD-10-CM code, S13.121A (Dislocation of C1/C2 cervical vertebrae, initial encounter). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- S13.121ADislocation of C1/C2 cervical vertebrae, initial encounterapproximate
Common questions about 839.02
What is the ICD-10 code for ICD-9 839.02?
- The GEMs map 839.02 to ICD-10-CM S13.121A.
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.