Can you get a tummy tuck because of medical reasons?

Thank you for the question.
The tummy tuck operation is an  abdominal wall contouring operation that serves to reapproximate the abdominal wall muscles that have spread with pregnancy and remove the “excess skin” of the lower abdomen.  It is generally consider an "aesthetic" procedure, compared to the panniculectomy operation (involves primarily removal of the lower abdominal wall apron) which may be considered more of a “medically necessary” procedure. 

The panniculectomy operation involves excision of the lower abdominal wall pannus or  overhanging skin/adipose tissue. It is not considered an  aesthetically driven procedure;  it is often performed to help with concerns such as skin breakdown, infections/rashes… 
  Ultimately, careful selection of your plastic surgeon will be the most important decision you make.  Careful physical examination and careful communication of your goals will allow for you and your plastic surgeon to plan the appropriate operation. 
I hope this, and the attached link, helps.  Best wishes.   

Absolutely. While it is technically considered a cosmetic procedure, a tummy tuck can have considerable medical benefits as well. During a tummy tuck, damaged or separated abdominal muscles are often repaired. This can help reduce back pain and correct posture issues in many cases by improving spinal support. However, it’s important to remember that despite its medical benefits, many insurance providers still consider a tummy tuck to be a cosmetic procedure and will not typically cover the surgery.