Z16.11

Z16.11: Resistance to penicillins

Billable / specific codeICD-10-CM

Z16.11 is a billable, specific ICD-10-CM code for resistance to penicillins. It is valid for submission on a claim.

Check Z16.11 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Resistance to amoxicillin
Resistance to ampicillin

Excludes1 inherited from the categories above Z16.11

A category’s note binds every code beneath it.

Written on 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Resistance, resistant›organism›to›drug›amoxicillin
Resistance, resistant›organism›to›drug›ampicillin
Resistance, resistant›organism›to›drug›penicillins

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z16.1