ICD-10 · PDGM grouping
Z16-Z16 — Resistance to antimicrobial drugs
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
Codes in range
19
No clinical group
19
A period cannot be grouped from these.
Barred as primary
19
CMS rejects these in the primary position.
Where these codes group
None of the 19 codes in Z16-Z16 is assigned a PDGM clinical group. A 30-day period cannot be grouped from any of them, so none can hold the primary position on a home health claim.
Code families in Z16-Z16
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in Z16-Z16
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| Z1610 | Resistance to unspecified beta lactam antibiotics | None | Cannot lead a claim |
| Z1611 | Resistance to penicillins | None | Cannot lead a claim |
| Z1612 | Extended spectrum beta lactamase (ESBL) resistance | None | Cannot lead a claim |
| Z1613 | Resistance to carbapenem | None | Cannot lead a claim |
| Z1619 | Resistance to other specified beta lactam antibiotics | None | Cannot lead a claim |
| Z1620 | Resistance to unspecified antibiotic | None | Cannot lead a claim |
| Z1621 | Resistance to vancomycin | None | Cannot lead a claim |
| Z1622 | Resistance to vancomycin related antibiotics | None | Cannot lead a claim |
| Z1623 | Resistance to quinolones and fluoroquinolones | None | Cannot lead a claim |
| Z1624 | Resistance to multiple antibiotics | None | Cannot lead a claim |
| Z1629 | Resistance to other single specified antibiotic | None | Cannot lead a claim |
| Z1630 | Resistance to unspecified antimicrobial drugs | None | Cannot lead a claim |
| Z1631 | Resistance to antiparasitic drug(s) | None | Cannot lead a claim |
| Z1632 | Resistance to antifungal drug(s) | None | Cannot lead a claim |
| Z1633 | Resistance to antiviral drug(s) | None | Cannot lead a claim |
| Z16341 | Resistance to single antimycobacterial drug | None | Cannot lead a claim |
| Z16342 | Resistance to multiple antimycobacterial drugs | None | Cannot lead a claim |
| Z1635 | Resistance to multiple antimicrobial drugs | None | Cannot lead a claim |
| Z1639 | Resistance to other specified antimicrobial drug | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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