ICD-9-CM procedure code (retired)
34.23 — Biopsy of chest wall
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 34.23
34.23 is an ICD-9-CM procedure code for biopsy of chest wall. 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 7 ICD-10-PCS codes, such as 0W980ZX (Drainage of Chest Wall, Open Approach, Diagnostic), 0W983ZX (Drainage of Chest Wall, Percutaneous Approach, Diagnostic) and 0W984ZX (Drainage of Chest Wall, Percutaneous Endoscopic Approach, Diagnostic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0W980ZXDrainage of Chest Wall, Open Approach, Diagnosticapproximate
- 0W983ZXDrainage of Chest Wall, Percutaneous Approach, Diagnosticapproximate
- 0W984ZXDrainage of Chest Wall, Percutaneous Endoscopic Approach, Diagnosticapproximate
- 0WB80ZXExcision of Chest Wall, Open Approach, Diagnosticapproximate
- 0WB83ZXExcision of Chest Wall, Percutaneous Approach, Diagnosticapproximate
- 0WB84ZXExcision of Chest Wall, Percutaneous Endoscopic Approach, Diagnosticapproximate
- 0WB8XZXExcision of Chest Wall, External Approach, Diagnosticapproximate
Common questions about 34.23
What is the ICD-10 code for ICD-9 34.23?
- The GEMs map 34.23 to ICD-10-PCS 0W980ZX, 0W983ZX, 0W984ZX, 0WB80ZX, 0WB83ZX, 0WB84ZX and 1 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.