The information comes from the AMA website here: https://www.ama-assn.org/practice-management/cpt/covid-19-cpt-vaccine-and-immunization-codes
The document she's showing seems to be Appendix Q - which is a big table summarizing the various codes.
The website also has several other documents which goes into each code in more depth. For example, if you want to find out more about code 91307, which is a version of the Pfizer vaccine that seems to have lower dosage than the original 91300 version, you can see that near the bottom there is an October 2021 publication that has the info for code 91307.
Direct link to that doc here: https://www.ama-assn.org/system/files/cpt-assistant-guide-coronavirus-october-2021.pdf
In this doc we see what code 91307 is about:
"Newly established COVID-19 vaccine product code 91307 describes the new Pfizer two-dose pediatric tailored vaccine. In contrast to the adult formulation, which uses a 30 mcg/0.3 mL ready-to-use formula, the vaccine for patients ages 5 through 11 requires reconstitution using a diluent to reach the appropriate dosage of 10 mcg/0.2 mL."
There should be a document describing each code and why that code was created/what makes each code different.
The information comes from the AMA website here: https://www.ama-assn.org/practice-management/cpt/covid-19-cpt-vaccine-and-immunization-codes
The document she's showing seems to be Appendix Q - which is a big table summarizing the various codes.
The website also has several other documents which goes into each code in more depth. For example, if you want to find out more about code 91307, which is a version of the Pfizer vaccine that seems to have lower dosage than the original 91300 version, you can see that near the bottom there is an October 2021 publication that has the info for code 91307.
Direct link to that doc here: https://www.ama-assn.org/system/files/cpt-assistant-guide-coronavirus-october-2021.pdf
In this doc we see what code 91307 is about:
"Newly established COVID-19 vaccine product code 91307 describes the new Pfizer two-dose pediatrictailored vaccine. In contrast to the adult formulation, which uses a 30 mcg/0.3 mL ready-to-use formula, the vaccine for patients ages 5 through 11 requires reconstitution using a diluent to reach the appropriate dosage of 10 mcg/0.2 mL."
There should be a document describing each code and why that code was created/what makes each code different.