Encounter for immunization

This code signifies a patient visit primarily for the administration of a vaccine or immunizing agent. It indicates that the patient is receiving prophylactic treatment against infectious diseases, rather than being treated for an existing illness.

Use this code for routine vaccinations, booster shots, or immunizations required for travel or occupational exposure. It is appropriate when the sole purpose of the encounter is the administration of the vaccine, and no other significant medical evaluation or treatment is performed.

• Always code the specific vaccine administered using the appropriate CPT code in conjunction with this diagnosis code.
• Do not use this code if the patient is presenting with symptoms of an illness that is subsequently treated with an immunization (e.g., rabies post-exposure prophylaxis for an animal bite).
• This code is typically a primary diagnosis, indicating the reason for the encounter.