ICD-9-CM diagnosis code (retired)
733.22 — Aneurysmal bone cyst
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 733.22
733.22 is an ICD-9-CM diagnosis code for Aneurysmal bone cyst. 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, M85.50 (Aneurysmal bone cyst, unspecified site). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- M85.50Aneurysmal bone cyst, unspecified siteapproximate
Common questions about 733.22
What is the ICD-10 code for ICD-9 733.22?
- The GEMs map 733.22 to ICD-10-CM M85.50.
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.