Z16.3
⚠ Non-billable (Header)Resistance to other antimicrobial drugs
Factors influencing health status and contact with health services (Z00-Z99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
directCannot be coded with Z16.3
- • resistance to antibiotics (Z16.1-, Z16.2-)
❌ Excludes1
inherited from Z16Rules from parent category Z16: Resistance to antimicrobial drugs
- • Methicillin resistant Staphylococcus aureus infection (A49.02)
- • Methicillin resistant Staphylococcus aureus pneumonia (J15.212)
- • Sepsis due to Methicillin resistant Staphylococcus aureus (A41.02)
📋 Code Instructions
from Z16- • Code first: the infection
Child Codes (7)
Z16.30Resistance to unspecified antimicrobial drugsZ16.31Resistance to antiparasitic drug(s)Z16.32Resistance to antifungal drug(s)Z16.33Resistance to antiviral drug(s)Z16.34Resistance to antimycobacterial drug(s)Z16.35Resistance to multiple antimicrobial drugsZ16.39Resistance to other specified antimicrobial drug
🧪 Validate Combinations
Add Z16.3 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeZ16.3
BillableNo — Header code
ParentZ16
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes14 rule(s)
Excludes20 note(s)
Child codes7
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)