Can I include the money I have taken out of my check for medical,dental & vision for my son included as income?

I pay 150.00 a month in support, and I provide medical, dental and vision insurance for him as well, which adds up to an additional 400.00 per month, can I have that amount added to the 150.00 a month that I pay? He lives in Washington state.
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If the order for support would allow you to do that, then yes. However, the order more likely says pay the support AND provide insurance.
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