it is also more clearly stated in the I-693 instructions
"What if I am a K nonimmigrant visa holder and already completed an immigration medical examination
abroad?
If you were admitted as a:
A. K-1 fiancé(e) or a K-2 child of a K-1 fiancé(e); or
B. K-3 spouse of a U.S. citizen or a K-4 child of a K-3 spouse of a U.S. citizen; and
C. You received a medical examination prior to admission, then:
(1) You are not required to complete another immigration medical examination as long as you file your Form
I-485 within one year of an immigration medical examination completed outside the United States; and
(a) The panel physician did not find a Class A medical condition during your imigration medical examination;
or
Form I-693 Instructions 01/20/25 Page 8 of 12
(b) The panel physician did find a Class A medical condition, you received a waiver of inadmissibility, and
you have complied with the terms and conditions of the waiver.
(2) Even if a new immigration medical examination is not required, you must still show proof that you complied
with the vaccination requirements. If the vaccination record (DS 3025) was not properly completed and
included as part of the original medical examination report completed abroad, you will need to have the Part
10. Vaccination Record completed by a designated civil surgeon. In this case, you must submit Parts 1. - 5.,
7., and 10. of Form I-693."
https://www.uscis.gov/sites/default/files/document/forms/i-693instr.pdf
so as long as your DS-3025 is complete, no need to go spending an extra $400 lol