ICD-9-CM procedure code (retired)
55.12 — Pyelostomy
About ICD-9-CM 55.12
55.12 is an ICD-9-CM procedure code for pyelostomy. 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 4 ICD-10-PCS codes, such as 0T9370Z (Drainage of Right Kidney Pelvis with Drainage Device, Via Natural or Artificial Opening), 0T9380Z (Drainage of Right Kidney Pelvis with Drainage Device, Via Natural or Artificial Opening Endoscopic) and 0T9470Z (Drainage of Left Kidney Pelvis with Drainage Device, Via Natural or Artificial Opening). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0T9370ZDrainage of Right Kidney Pelvis with Drainage Device, Via Natural or Artificial Openingapproximate
- 0T9380ZDrainage of Right Kidney Pelvis with Drainage Device, Via Natural or Artificial Opening Endoscopicapproximate
- 0T9470ZDrainage of Left Kidney Pelvis with Drainage Device, Via Natural or Artificial Openingapproximate
- 0T9480ZDrainage of Left Kidney Pelvis with Drainage Device, Via Natural or Artificial Opening Endoscopicapproximate
Common questions about 55.12
What is the ICD-10 code for ICD-9 55.12?
- The GEMs map 55.12 to ICD-10-PCS 0T9370Z, 0T9380Z, 0T9470Z and 0T9480Z.
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.