Is Z16.3 a billable code?
No. Z16.3 is a header code that groups 8 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z16.3: Resistance to other antimicrobial drugs
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z16.3 groups related diagnoses under resistance to other antimicrobial drugs. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z16.3
- Z16.30Resistance to unspecified antimicrobial drugs
- Z16.31Resistance to antiparasitic drug(s)
- Z16.32Resistance to antifungal drug(s)
- Z16.33Resistance to antiviral drug(s)
- Z16.341Resistance to single antimycobacterial drug
- Z16.342Resistance to multiple antimycobacterial drugs
- Z16.35Resistance to multiple antimicrobial drugs
- Z16.39Resistance to other specified antimicrobial drug
Other codes in Z16 Resistance to antimicrobial drugs
Z16.3 questions
What does Z16.3 mean?
Z16.3 is the ICD-10-CM code for Resistance to other antimicrobial drugs. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.