ICD-9-CM diagnosis code (retired)
524.25 — Open posterior occlusal relationship
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 524.25
524.25 is an ICD-9-CM diagnosis code for open posterior occlusal relationship. 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, M26.221 (Open posterior occlusal relationship). The match is exact.
ICD-10-CM equivalents
- M26.221Open posterior occlusal relationshipexact match
Common questions about 524.25
What is the ICD-10 code for ICD-9 524.25?
- The GEMs map 524.25 to ICD-10-CM M26.221.
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.