Z22.2
BillableCarrier of diphtheria
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A person who carries the diphtheria bacteria in their body and can spread it to others, typically without symptoms.
Coding Tips
- •Carriers may have had previous diphtheria infection or vaccination; verify immunization status
- •Important for identifying individuals who need prophylactic treatment and monitoring contacts