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ICD-9-CM procedure code (retired)

40.51 — Radical excision of axillary lymph nodes

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 40.51

40.51 is an ICD-9-CM procedure code for radical excision of axillary lymph nodes. 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 07T50ZZ (Resection of Right Axillary Lymphatic, Open Approach), 07T54ZZ (Resection of Right Axillary Lymphatic, Percutaneous Endoscopic Approach) and 07T60ZZ (Resection of Left Axillary Lymphatic, Open Approach). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 40.51

What is the ICD-10 code for ICD-9 40.51?

The GEMs map 40.51 to ICD-10-PCS 07T50ZZ, 07T54ZZ, 07T60ZZ and 07T64ZZ.

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.