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ICD-9-CM diagnosis code (retired)

173.59 — Other specified malignant neoplasm of skin of trunk, except scrotum

ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.

About ICD-9-CM 173.59

173.59 is an ICD-9-CM diagnosis code for other specified malignant neoplasm of skin of trunk, except scrotum. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to 3 ICD-10-CM codes, such as C44.590 (Other specified malignant neoplasm of anal skin), C44.591 (Other specified malignant neoplasm of skin of breast) and C44.599 (Other specified malignant neoplasm of skin of other part of trunk). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about 173.59

What is the ICD-10 code for ICD-9 173.59?

The GEMs map 173.59 to ICD-10-CM C44.590, C44.591 and C44.599.

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.