ΔE 16.2, loose: different enough that you should pick on purpose. Septic Green is a little lighter, more saturated, cooler than Oozing Vomit.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Septic Green is a little lighter, more saturated, cooler than Oozing Vomit.
The same difference applies the other way round: Oozing Vomit is a little darker, more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Oozing Vomit on the colour wheel See Septic Green on the colour wheel
All matches: Oozing Vomit equivalents · Septic Green equivalents