You have two years left to prepare for the diagnosis coding shift.
When a patient presents to the office for a flu shot, you would generally report the ICD-9 V04.81 (Need for prophylactic vaccination and inoculation against certain viral diseases; influenza).
Come 2013 when ICD-9 transitions to ICD-10, the code will be classified under a more generalized description: Z23 (Encounter for immunization).
ICD difference: Z23's descriptor pertains to a more universal encounter for immunization. On the other hand, V04.81 describes a vaccination specifically for 'viral diseases' and 'influenza'.
Coder tips: You will report any immunization as Z23. Therefore, the procedure codes will be required to identify the types of immunizations administered by the physician.
