Z16.24 — Resistance to multiple antibiotics
Z16.24 is a billable, specific ICD-10-CM code for resistance to multiple antibiotics. It is valid for submission on a claim.
Other codes that can never be billed with Z16.24
These codes carry an Excludes1 note pointing at Z16.24. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z16.24 alone.
- Z16.35Resistance to multiple antimicrobial drugs
Risk adjustment
Z16.24 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How Z16.24 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z16.24.
- Resistance, resistant›organism›to›drug›antibiotic›multiple
- Resistance, resistant›organism›to›drug›multiple drugs›antibiotics
Related codes at this level
Codes that share Z16.2. If Z16.24 is not quite right, the correct code is usually one of these.
Questions about Z16.24
- Is Z16.24 a billable ICD-10-CM code?
- Yes. Z16.24 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z16.24 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Resistance to antimicrobial drugs (Z16).