ICD-9-CM diagnosis code (retired)
727.50 — Rupture of synovium, unspecified
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 727.50
727.50 is an ICD-9-CM diagnosis code for rupture of synovium, unspecified. 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, M66.10 (Rupture of synovium, unspecified joint). The match is exact.
ICD-10-CM equivalents
- M66.10Rupture of synovium, unspecified jointexact match
Common questions about 727.50
What is the ICD-10 code for ICD-9 727.50?
- The GEMs map 727.50 to ICD-10-CM M66.10.
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.