Z16
Z16: Resistance to antimicrobial drugs
Non-billable headerICD-10-CM
Z16 is a non-billable header ICD-10-CM code for resistance to antimicrobial drugs. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Code first
The underlying condition must be sequenced before this code.
- the infection
Notes
Additional guidance from the ICD-10-CM tabular list.
- The codes in this category are provided for use as additional codes to identify the resistance and non-responsiveness of a condition to antimicrobial drugs.
Other codes that can never be billed with Z16
Their own Excludes1 notes name this code, so the conflict is not listed above.
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
3 child codes. Green means billable.