Note: Some immunization names you convert may have similar, but not identical, names as the default immunizations in v10. For example 9.1 limited you to 8 characters so a longer name like "Varicella" may have been abbreviated to something like "Varicel". After conversion you'll have two immunizations with similar names. You’ll be able to run the Configuration Merge utility in v10 to clean up this type of situation by merging the two together.