Y59: Other and unspecified vaccines and biological substances
Y59.9: Vaccine or biological substance, unspecified
During treatment you were given a certain substance. This kind of substance can be a vaccine, for example. This substance had an adverse side-effect.
Substances used for a treatment can have adverse side-effects alongside the intended effect. These are known as side-effects.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.