Z16
Resistance to antimicrobial drugs
Codes in this block
24 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- Z16Resistance to antimicrobial drugsNon-billable
- Z16.1Resistance to beta lactam antibioticsNon-billable
- Z16.10Resistance to unspecified beta lactam antibioticsBillable
- Z16.11Resistance to penicillinsBillable
- Z16.12Extended spectrum beta lactamase (ESBL) resistanceBillable
- Z16.13Resistance to carbapenemBillable
- Z16.19Resistance to other specified beta lactam antibioticsBillable
- Z16.2Resistance to other antibioticsNon-billable
- Z16.20Resistance to unspecified antibioticBillable
- Z16.21Resistance to vancomycinBillable
- Z16.22Resistance to vancomycin related antibioticsBillable
- Z16.23Resistance to quinolones and fluoroquinolonesBillable
- Z16.24Resistance to multiple antibioticsBillable
- Z16.29Resistance to other single specified antibioticBillable
- Z16.3Resistance to other antimicrobial drugsNon-billable
- Z16.30Resistance to unspecified antimicrobial drugsBillable
- Z16.31Resistance to antiparasitic drug(s)Billable
- Z16.32Resistance to antifungal drug(s)Billable
- Z16.33Resistance to antiviral drug(s)Billable
- Z16.34Resistance to antimycobacterial drug(s)Non-billable
- Z16.341Resistance to single antimycobacterial drugBillable
- Z16.342Resistance to multiple antimycobacterial drugsBillable
- Z16.35Resistance to multiple antimicrobial drugsBillable
- Z16.39Resistance to other specified antimicrobial drugBillable
Official Guidelines for Z16
FY 2026 ›Sections that reference codes in Z16
- I.C.1.cInfections resistant to antibioticsZ16Chapter 1 guidance
- I.C.1.e.1)(a)Combination codes for MRSA infectionZ16.11Chapter 1 guidance
- I.C.1.e.1)(b)Other codes for MRSA infectionZ16.11Chapter 1 guidance
- I.C.21.c.3)StatusZ16
- I.B.3Code or codes from A00.0 through T88.9, Z00-Z99.8, U00-U85Z00-Z99.8General rules
- I.C.20.a.1)Used with any code in the range of A00.0-T88.9, Z00-Z99Z00-Z99Chapter 20 guidance
- IV.BCodes from A00.0 through T88.9, Z00-Z99, U00-U85Z00-Z99General rules
- IV.EEncounters for circumstances other than a disease or injuryZ00- Z99General rules