ICD-9-CM procedure code (retired)
93.97 — Decompression chamber
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 93.97
93.97 is an ICD-9-CM procedure code for decompression chamber. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 2 ICD-10-PCS codes, such as 6A150ZZ (Decompression, Circulatory, Single) and 6A151ZZ (Decompression, Circulatory, Multiple). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 93.97
What is the ICD-10 code for ICD-9 93.97?
- The GEMs map 93.97 to ICD-10-PCS 6A150ZZ and 6A151ZZ.
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.