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ICD-9-CM procedure code (retired)

34.25 — Closed [percutaneous] [needle] biopsy of mediastinum

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 34.25

34.25 is an ICD-9-CM procedure code for closed [percutaneous] [needle] biopsy of mediastinum. 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 4 ICD-10-PCS codes, such as 0W9C3ZX (Drainage of Mediastinum, Percutaneous Approach, Diagnostic), 0W9C4ZX (Drainage of Mediastinum, Percutaneous Endoscopic Approach, Diagnostic) and 0WBC3ZX (Excision of Mediastinum, Percutaneous Approach, Diagnostic). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 34.25

What is the ICD-10 code for ICD-9 34.25?

The GEMs map 34.25 to ICD-10-PCS 0W9C3ZX, 0W9C4ZX, 0WBC3ZX and 0WBC4ZX.

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.