Hi,   I was running into a similar issue. I think here is where it lies.    InVitals = 1; If Indvbl = . THEN Hypre1DeathInd = 0; Else IF Indvbl = 0 THEN HypReIDeathInd= 0; ELSE IF IndVbl = 1 THEN HypRelDeathInd = 1;   Since your code is referring to lastvitals, the InVitals = 1, needs to be changed to InLastVitals = 1. Then the IndVbl is a format not a variable. Should be like this: FORMAT HypRelDeathInd IndVbl. ... View more