ICD-9-CM diagnosis code (retired)
523.00 — Acute gingivitis, plaque induced
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 523.00
523.00 is an ICD-9-CM diagnosis code for acute gingivitis, plaque induced. 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, K05.00 (Acute gingivitis, plaque induced). The match is exact.
ICD-10-CM equivalents
- K05.00Acute gingivitis, plaque inducedexact match
Common questions about 523.00
What is the ICD-10 code for ICD-9 523.00?
- The GEMs map 523.00 to ICD-10-CM K05.00.
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.