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ICD-9-CM procedure code (retired)

40.0 — Incision of lymphatic structures

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 40.0

40.0 is an ICD-9-CM procedure code for incision of lymphatic structures. 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 89 ICD-10-PCS codes, such as 079000Z (Drainage of Head Lymphatic with Drainage Device, Open Approach), 07900ZZ (Drainage of Head Lymphatic, Open Approach) and 079040Z (Drainage of Head Lymphatic with Drainage Device, 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 40.0

What is the ICD-10 code for ICD-9 40.0?

The GEMs map 40.0 to ICD-10-PCS 079000Z, 07900ZZ, 079040Z, 07904ZZ, 079100Z, 07910ZZ and 83 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.