Weld Symbol Question

[EmilGies]

I am working on a joint fit-up - 4" SCH 160 Pipe to 4" SCH 80 pipe cap. This joint will require a taper per ASME VIII UW-9. Is there a way to display this taper as part of the joint weld symbol? What is the common way for a drawing to reflect this?
Thanks, this is my first exposure to unequal thickness butt welds.
EG

 

[codeeng]

I'm not sure there is a symbol but you could add a note in the tail to reflect the taper boring requirement.

 

[EmilGies]

Thank you Codeeng. We currently have it as a general dwg note. Makes more sense in the tail.
I wanted to make sure there was no standard convention I was missing.