ICD-9-CM procedure code (retired)
55.4 — Partial nephrectomy
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 55.4
55.4 is an ICD-9-CM procedure code for partial nephrectomy. 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 28 ICD-10-PCS codes, such as 0TB00ZZ (Excision of Right Kidney, Open Approach), 0TB03ZZ (Excision of Right Kidney, Percutaneous Approach) and 0TB04ZZ (Excision of Right Kidney, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0TB00ZZExcision of Right Kidney, Open Approachapproximate
- 0TB03ZZExcision of Right Kidney, Percutaneous Approachapproximate
- 0TB04ZZExcision of Right Kidney, Percutaneous Endoscopic Approachapproximate
- 0TB07ZZExcision of Right Kidney, Via Natural or Artificial Openingapproximate
- 0TB08ZZExcision of Right Kidney, Via Natural or Artificial Opening Endoscopicapproximate
- 0TB10ZZExcision of Left Kidney, Open Approachapproximate
- 0TB13ZZExcision of Left Kidney, Percutaneous Approachapproximate
- 0TB14ZZExcision of Left Kidney, Percutaneous Endoscopic Approachapproximate
- 0TB17ZZExcision of Left Kidney, Via Natural or Artificial Openingapproximate
- 0TB18ZZExcision of Left Kidney, Via Natural or Artificial Opening Endoscopicapproximate
- 0TB30ZZExcision of Right Kidney Pelvis, Open Approachapproximate
- 0TB33ZZExcision of Right Kidney Pelvis, Percutaneous Approachapproximate
- 0TB34ZZExcision of Right Kidney Pelvis, Percutaneous Endoscopic Approachapproximate
- 0TB37ZZExcision of Right Kidney Pelvis, Via Natural or Artificial Openingapproximate
- 0TB38ZZExcision of Right Kidney Pelvis, Via Natural or Artificial Opening Endoscopicapproximate
- 0TB40ZZExcision of Left Kidney Pelvis, Open Approachapproximate
- 0TB43ZZExcision of Left Kidney Pelvis, Percutaneous Approachapproximate
- 0TB44ZZExcision of Left Kidney Pelvis, Percutaneous Endoscopic Approachapproximate
- 0TB47ZZExcision of Left Kidney Pelvis, Via Natural or Artificial Openingapproximate
- 0TB48ZZExcision of Left Kidney Pelvis, Via Natural or Artificial Opening Endoscopicapproximate
- 0TT30ZZResection of Right Kidney Pelvis, Open Approachapproximate
- 0TT34ZZResection of Right Kidney Pelvis, Percutaneous Endoscopic Approachapproximate
- 0TT37ZZResection of Right Kidney Pelvis, Via Natural or Artificial Openingapproximate
- 0TT38ZZResection of Right Kidney Pelvis, Via Natural or Artificial Opening Endoscopicapproximate
- 0TT40ZZResection of Left Kidney Pelvis, Open Approachapproximate
- 0TT44ZZResection of Left Kidney Pelvis, Percutaneous Endoscopic Approachapproximate
- 0TT47ZZResection of Left Kidney Pelvis, Via Natural or Artificial Openingapproximate
- 0TT48ZZResection of Left Kidney Pelvis, Via Natural or Artificial Opening Endoscopicapproximate
Common questions about 55.4
What is the ICD-10 code for ICD-9 55.4?
- The GEMs map 55.4 to ICD-10-PCS 0TB00ZZ, 0TB03ZZ, 0TB04ZZ, 0TB07ZZ, 0TB08ZZ, 0TB10ZZ and 22 more.
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.