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ICD-9-CM procedure code (retired)

21.4 — Resection of nose

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 21.4

21.4 is an ICD-9-CM procedure code for resection of nose. 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 09TK0ZZ (Resection of Nasal Mucosa and Soft Tissue, Open Approach), 09TK4ZZ (Resection of Nasal Mucosa and Soft Tissue, Percutaneous Endoscopic Approach) and 09TK8ZZ (Resection of Nasal Mucosa and Soft Tissue, Via Natural or Artificial Opening Endoscopic). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 21.4

What is the ICD-10 code for ICD-9 21.4?

The GEMs map 21.4 to ICD-10-PCS 09TK0ZZ, 09TK4ZZ, 09TK8ZZ and 09TKXZZ.

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.