| Z88 | Allergy status to drugs, medicaments and biological substances | NON-BILLABLE CODE |
| Z88.0 | Allergy status to penicillin | BILLABLE CODE |
| Z88.1 | Allergy status to other antibiotic agents | BILLABLE CODE |
| Z88.2 | Allergy status to sulfonamides | BILLABLE CODE |
| Z88.3 | Allergy status to other anti-infective agents | BILLABLE CODE |
| Z88.4 | Allergy status to anesthetic agent | BILLABLE CODE |
| Z88.5 | Allergy status to narcotic agent | BILLABLE CODE |
| Z88.6 | Allergy status to analgesic agent | BILLABLE CODE |
| Z88.7 | Allergy status to serum and vaccine | BILLABLE CODE |
| Z88.9 | Allergy status to unspecified drugs, medicaments and biological substances | BILLABLE CODE |
