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Series Special Rules

• If the patient has >= 1 COVID-19 shot(s) on record prior to target dose 1, evaluate and recommend using the following intervals from the last shot, unless the shot has been ignored per (due to the CVX Code Absolute Maximum Age rule or due to an inadvertent bivalent shot administered in the previous season):  
  
  • Absolute Minimum Interval = 8 weeks - 4 days
  • Minimum Interval = 8 weeks
  • Recommended Interval = 8 weeks
• If the patient is >= 5 years of age as of the evaluation date, and the (8 week) elapsed interval from the prior shot is < the date on which the patient turns age 5 years, the recommendation date is 8 weeks after the last shot administered (and not age 5 years).
• If a dose of CVX 313 is administered and the patient does not have COVID-19 doses on record prior to 9/12/2023the only dose on record, the series is not complete. Absolute minimum interval to a mRNA CVX (CVX 213, CVX 309, CVX 310, CVX 311, CVX 312) = 8 weeks - 4 days.
• If a dose of CVX 211 is administered in this season (i.e., between 9/12/23 and 10/3/23), evaluate as Accepted with reason code VACCINE_NOT_PART_OF_THIS_SERIES. Absolute minimum interval = 8 weeks - 4 days.