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ICD-9-CM diagnosis code (retired)

V90.31 — Retained animal quills or spines

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 V90.31

V90.31 is an ICD-9-CM diagnosis code for retained animal quills or spines. 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 one ICD-10-CM code, Z18.31 (Retained animal quills or spines). The match is exact.

ICD-10-CM equivalents

Common questions about V90.31

What is the ICD-10 code for ICD-9 V90.31?

The GEMs map V90.31 to ICD-10-CM Z18.31.

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.