Distinct count query

[#1]

Hi,

I have the following expression which should count matches from a specified list against four field results. It counts for each match where I want it to count only once if it matches against more than one field result.

COUNT({<
[Accidents Immediate Cause Desc] = {"1d*","1k*","3a*","3b*","3b*","3h*","4s*","6a*","6b*","6g*","6j*","6m*","7m*","7q*","8ab*","8ac*","8ad*","8a*","8b*","8c*","8d*","8e*","8f*","8g*","8h*","8l*","8m*",
"8n*","8o*","8p*","8y*","8z*","9a*","10*","12aa","12e*","12f*","12g*","12n*","12o*","12q*","12r*","12y*","12z*","13*","14a*","14b*","14c*","14d*","14k*","15*"
}>} distinct [Accidents accidentRef])
+
COUNT({<
[Accidents Underlying Cause Desc] = {"1d*","1k*","3a*","3b*","3b*","3h*","4s*","6a*","6b*","6g*","6j*","6m*","7m*","7q*","8ab*","8ac*","8ad*","8a*","8b*","8c*","8d*","8e*","8f*","8g*","8h*","8l*","8m*",
"8n*","8o*","8p*","8y*","8z*","9a*","10*","12aa","12e*","12f*","12g*","12n*","12o*","12q*","12r*","12y*","12z*","13*","14a*","14b*","14c*","14d*","14k*","15*"}>}
distinct [Accidents accidentRef])
+
COUNT ({<
[Accidents Severity] = {"Moderate","Major"}>} distinct [Accidents accidentRef])
+
COUNT ({<
[Accidents RIDReportable] = {"1"}>} distinct [Accidents accidentRef]

)

so if all four fields match, it counts as 4 where as I want it to count as 1.

I guess the answer is obvious but I cannot get it to work if I combine into one count statement  - is there a max length permitted in QlikView?