MCMCB Pro
Z88

Z88Allergy status to drugs, medicaments and biological substances

Non-billable headerICD-10-CM

Z88 is a non-billable header ICD-10-CM code for allergy status to drugs, medicaments and biological substances. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • Allergy status, other than to drugs and biological substances (Z91.0-)

Risk adjustment

Z88 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.

Code to one of these instead Z88

10 child codes. Green means billable.

Questions about Z88

Is Z88 a billable ICD-10-CM code?
No. Z88 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z88 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).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.