| Z16 | Resistance to antimicrobial drugs |
| Z16.1 | Resistance to beta lactam antibiotics |
| Z16.10 | Resistance to unspecified beta lactam antibiotics |
| Z16.11 | Resistance to penicillins |
| Z16.12 | Extended spectrum beta lactamase (ESBL) resistance |
| Z16.19 | Resistance to other specified beta lactam antibiotics |
| Z16.2 | Resistance to other antibiotics |
| Z16.20 | Resistance to unspecified antibiotic |
| Z16.21 | Resistance to vancomycin |
| Z16.22 | Resistance to vancomycin related antibiotics |
| Z16.23 | Resistance to quinolones and fluoroquinolones |
| Z16.24 | Resistance to multiple antibiotics |
| Z16.29 | Resistance to other single specified antibiotic |
| Z16.3 | Resistance to other antimicrobial drugs |
| Z16.30 | Resistance to unspecified antimicrobial drugs |
| Z16.31 | Resistance to antiparasitic drug(s) |
| Z16.32 | Resistance to antifungal drug(s) |
| Z16.33 | Resistance to antiviral drug(s) |
| Z16.34 | Resistance to antimycobacterial drug(s) |
| Z16.341 | Resistance to single antimycobacterial drug |
| Z16.342 | Resistance to multiple antimycobacterial drugs |
| Z16.35 | Resistance to multiple antimicrobial drugs |
| Z16.39 | Resistance to other specified antimicrobial drug |