Altering the 500 http return status for context canceled

[ibevilinc]

I'm aware the context canceled means the client connection was closed, but is there a way to alter the 500 status code to something else in those circumstances? We're attempting to configure NOC alerts for when the downstream endpoint service(s) are having problems, but these context cancelled 500s are introducing false positives such that the alert isn't currently useful. Being able to use a different status code for these would help in differentiating service failures and those when the client connection is bad; is there any way to accomplish this?