Z91.048 — Other nonmedicinal substance allergy status
Z91.048 is a billable, specific ICD-10-CM code for other nonmedicinal substance allergy status. It is valid for submission on a claim.
Risk adjustment
Z91.048 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
Z91.048 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56805Billing and Coding: Magnetic Resonance Angiography (MRA)
- A56844Billing and Coding: RAST Type Tests
- A57043Billing and Coding: RAST Type Tests
- A57473Billing and Coding: Allergy Testing
How Z91.048 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 Z91.048.
- History›personal›allergy›nonmedicinal agents
Related codes at this level
Codes that share Z91.04. If Z91.048 is not quite right, the correct code is usually one of these.
Questions about Z91.048
- Is Z91.048 a billable ICD-10-CM code?
- Yes. Z91.048 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z91.048 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).