What code could the doctor use to get treatment?

I have had weight loss surgery, but now have lympadema or lymphitis. MY inner thigh and apron hang to my right knee. The hospital submitted the pre-approval to the insurance under code 15830, which is for the removal of the apron. My question has been, should we not be treating the condition? I was told the only treatment was surgery to remove the excess skin. is there another code they can use for this?

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