ICD-9-CM procedure code (retired)
33.50 — Lung transplantation, not otherwise specified
About ICD-9-CM 33.50
33.50 is an ICD-9-CM procedure code for lung transplantation, not otherwise specified. 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 6 ICD-10-PCS codes, such as 0BYK0Z0 (Transplantation of Right Lung, Allogeneic, Open Approach), 0BYK0Z1 (Transplantation of Right Lung, Syngeneic, Open Approach) and 0BYK0Z2 (Transplantation of Right Lung, Zooplastic, Open Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0BYK0Z0Transplantation of Right Lung, Allogeneic, Open Approachapproximate
- 0BYK0Z1Transplantation of Right Lung, Syngeneic, Open Approachapproximate
- 0BYK0Z2Transplantation of Right Lung, Zooplastic, Open Approachapproximate
- 0BYL0Z0Transplantation of Left Lung, Allogeneic, Open Approachapproximate
- 0BYL0Z1Transplantation of Left Lung, Syngeneic, Open Approachapproximate
- 0BYL0Z2Transplantation of Left Lung, Zooplastic, Open Approachapproximate
Common questions about 33.50
What is the ICD-10 code for ICD-9 33.50?
- The GEMs map 33.50 to ICD-10-PCS 0BYK0Z0, 0BYK0Z1, 0BYK0Z2, 0BYL0Z0, 0BYL0Z1 and 0BYL0Z2.
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.