How do you code stasis ulcers?

We just admitted a resident that has some problems with skin integrity on his lower extremities. I believe the ulcers were the result of edema and weeping tissue, so I'm planning on coding them as stasis ulcers. On his right leg there are a couple of very defined areas and I'll be able to count them. But on his left leg, it looks like they all just kind of run together. How would you guys code that? As one large one if there are no definite lines between any of the areas? Then as areas heal start counting out spots? I've not had a case like this to code up until this point and could sure use some advice. The MDS manual doesn't give any good examples that fit this instance.
Thanks in advance!

God bless!