ICD-9-CM procedure code (retired)
34.21 — Transpleural thoracoscopy
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 34.21
34.21 is an ICD-9-CM procedure code for Transpleural thoracoscopy. 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 2 ICD-10-PCS codes, such as 0BJ04ZZ (Inspection of Tracheobronchial Tree, Percutaneous Endoscopic Approach) and 0WJQ4ZZ (Inspection of Respiratory Tract, 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 34.21
What is the ICD-10 code for ICD-9 34.21?
- The GEMs map 34.21 to ICD-10-PCS 0BJ04ZZ and 0WJQ4ZZ.
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.