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ICD-9-CM diagnosis code (retired)

839.50 — Open dislocation, vertebra, unspecified site

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 839.50

839.50 is an ICD-9-CM diagnosis code for open dislocation, vertebra, unspecified site. 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 S23.20XA (Dislocation of unspecified part of thorax, initial encounter) and S31.000A (Unspecified open wound of lower back and pelvis without penetration into retroperitoneum, 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 839.50

What is the ICD-10 code for ICD-9 839.50?

The GEMs map 839.50 to ICD-10-CM S23.20XA and S31.000A.

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.