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ICD-9-CM diagnosis code (retired)

V09.1 — Infection with microorganisms resistant to cephalosporins and other B-lactam antibiotics

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 V09.1

V09.1 is an ICD-9-CM diagnosis code for infection with microorganisms resistant to cephalosporins and other B-lactam antibiotics. 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 Z16.10 (Resistance to unspecified beta lactam antibiotics), Z16.12 (Extended spectrum beta lactamase (ESBL) resistance) and Z16.19 (Resistance to other specified beta lactam antibiotics). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about V09.1

What is the ICD-10 code for ICD-9 V09.1?

The GEMs map V09.1 to ICD-10-CM Z16.10, Z16.12 and Z16.19.

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.