Z79.2 — Long term (current) use of antibiotics
Z79.2 is a billable, specific ICD-10-CM code for long term (current) use of antibiotics. It is valid for submission on a claim.
Risk adjustment
Z79.2 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.
Medicare coverage
Z79.2 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57189Billing and Coding: Serum Magnesium
- A57434Billing and Coding: Vestibular and Audiologic Function Studies
How Z79.2 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 Z79.2.
- Long-term›antibiotics
- Prophylactic›administration of›antibiotics, long-term
- Therapy›drug, long-term›antibiotics
Related codes at this level
Codes that share Z79. If Z79.2 is not quite right, the correct code is usually one of these.
- Z79.0Long term (current) use of anticoagulants and antithrombotics/antiplatelets
- Z79.1Long term (current) use of non-steroidal anti-inflammatories (NSAID)
- Z79.3Long term (current) use of hormonal contraceptives
- Z79.4Long term (current) use of insulin
- Z79.5Long term (current) use of steroids
- Z79.6Long term (current) use of immunomodulators and immunosuppressants
- Z79.8Other long term (current) drug therapy
Questions about Z79.2
- Is Z79.2 a billable ICD-10-CM code?
- Yes. Z79.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z79.2 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).