ICD-9-CM diagnosis code (retired)
526.61 — Perforation of root canal space
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 526.61
526.61 is an ICD-9-CM diagnosis code for perforation of root canal space. 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, M27.51 (Perforation of root canal space due to endodontic treatment). The match is exact.
ICD-10-CM equivalents
- M27.51Perforation of root canal space due to endodontic treatmentexact match
Common questions about 526.61
What is the ICD-10 code for ICD-9 526.61?
- The GEMs map 526.61 to ICD-10-CM M27.51.
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.