Z88Allergy status to drugs, medicaments and biological substances

Z88 is the ICD-10-CM diagnosis code for allergy status to drugs, medicaments and biological substances. It belongs to block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Z88.0 (penicillin), Z88.1 (agents), Z88.2 (sulfonamides), Z88.3 (agents), Z88.4 (agent), Z88.5 (agent), Z88.6 (agent), Z88.7 (vaccine) and 2 more.

The conditions in its Excludes2 note aren't part of Z88, but may be coded alongside it if the patient has both: Allergy status, other than to drugs and biological substances (Z91.0-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.