Measure to not count customer_Id if customer records have specific values in a field

[pezakas]

Hello community, 

i have the following data:

1)Customer

cst_code	cst_id_surrogate	FirstN	LastN
1	151515	Mike	James
1	151516	Mike	James
2	161617	Maria	Kallas

2)Policy

Plc_ID	Plc_id_surrogate	Class
10001	10101	Health
10001	10102	Life
10002	10103	Health

3)Relational

cst_id_surrogate	Plc_id_surrogate
151515	10101
151516	10102
161617	10103

I want to create a measure that i can use as filter. All i need to get the customers who specific charasteristics.
In my case want to get ONLY the customer who dont have "Life" class. 
I expect only cst_code = 2 as a result

Thanks in advance

[pezakas]

Still not working as expected

[pezakas]

Still not working

[Ahmedx]

pls try this

Measure = 
COUNTX(FILTER(ALL('Policy'),'Policy'[Class]<>"Life"),[Plc_id_surrogate])

[pezakas]

Hello and thanks for you fast reply. 
So how should i use this measure as filter?
Measure > 0  or?
Cause like this, doesnt look like it works.

[Ahmedx]

pls try this

[Ahmedx]

You can apply visual level filters
Measure = IF(
COUNTROWS(FILTER(ALL('Policy'),'Policy'[Class]<>"Life"))>=1,1)