Z16.1
Z16.1: Resistance to beta lactam antibiotics
Non-billable headerICD-10-CM
Z16.1 is a non-billable header ICD-10-CM code for resistance to beta lactam antibiotics. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above Z16.1
A category’s note binds every code beneath it.
Other codes that can never be billed with Z16.1
Their own Excludes1 notes name this code, so the conflict is not listed above.
- Z16.3Resistance to other antimicrobial drugs
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Z16.1
5 child codes. Green means billable.