ICD-9-CM procedure code (retired)
57.91 — Sphincterotomy of bladder
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 57.91
57.91 is an ICD-9-CM procedure code for sphincterotomy of bladder. 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 3 ICD-10-PCS codes, such as 0T8C0ZZ (Division of Bladder Neck, Open Approach), 0T8C3ZZ (Division of Bladder Neck, Percutaneous Approach) and 0T8C4ZZ (Division of Bladder Neck, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 57.91
What is the ICD-10 code for ICD-9 57.91?
- The GEMs map 57.91 to ICD-10-PCS 0T8C0ZZ, 0T8C3ZZ and 0T8C4ZZ.
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.