ICD-9-CM procedure code (retired)
33.27 — Closed endoscopic biopsy of lung
About ICD-9-CM 33.27
33.27 is an ICD-9-CM procedure code for closed endoscopic biopsy of lung. 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 9 ICD-10-PCS codes, such as 0B9K8ZX (Drainage of Right Lung, Via Natural or Artificial Opening Endoscopic, Diagnostic), 0B9L8ZX (Drainage of Left Lung, Via Natural or Artificial Opening Endoscopic, Diagnostic) and 0B9M8ZX (Drainage of Bilateral Lungs, Via Natural or Artificial Opening Endoscopic, Diagnostic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0B9K8ZXDrainage of Right Lung, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 0B9L8ZXDrainage of Left Lung, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 0B9M8ZXDrainage of Bilateral Lungs, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 0BBK7ZXExcision of Right Lung, Via Natural or Artificial Opening, Diagnosticapproximate
- 0BBK8ZXExcision of Right Lung, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 0BBL7ZXExcision of Left Lung, Via Natural or Artificial Opening, Diagnosticapproximate
- 0BBL8ZXExcision of Left Lung, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 0BBM7ZXExcision of Bilateral Lungs, Via Natural or Artificial Opening, Diagnosticapproximate
- 0BBM8ZXExcision of Bilateral Lungs, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
Common questions about 33.27
What is the ICD-10 code for ICD-9 33.27?
- The GEMs map 33.27 to ICD-10-PCS 0B9K8ZX, 0B9L8ZX, 0B9M8ZX, 0BBK7ZX, 0BBK8ZX, 0BBL7ZX and 3 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.