| Z20.81 | Contact with and (suspected) exposure to other bacterial communicable diseases | NON-BILLABLE CODE |
| Z20.810 | Contact with and (suspected) exposure to anthrax | BILLABLE CODE |
| Z20.811 | Contact with and (suspected) exposure to meningococcus | BILLABLE CODE |
| Z20.818 | Contact with and (suspected) exposure to other bacterial communicable diseases | BILLABLE CODE |
| Z20.82 | Contact with and (suspected) exposure to other viral communicable diseases | NON-BILLABLE CODE |
| Z20.820 | Contact with and (suspected) exposure to varicella | BILLABLE CODE |
| Z20.821 | Contact with and (suspected) exposure to Zika virus | BILLABLE CODE |
| Z20.822 | Contact with and (suspected) exposure to COVID-19 | BILLABLE CODE |
| Z20.828 | Contact with and (suspected) exposure to other viral communicable diseases | BILLABLE CODE |
| Z20.89 | Contact with and (suspected) exposure to other communicable diseases | BILLABLE CODE |
