ICD-9-CM diagnosis code (retired)
523.6 — Accretions on teeth
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 523.6
523.6 is an ICD-9-CM diagnosis code for accretions on teeth. 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, K03.6 (Deposits [accretions] on teeth). The match is exact.
ICD-10-CM equivalents
- K03.6Deposits [accretions] on teethexact match
Common questions about 523.6
What is the ICD-10 code for ICD-9 523.6?
- The GEMs map 523.6 to ICD-10-CM K03.6.
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.