Help! Elevated cord! What does this mean? ??

Im 32w 2 with an iugr baby. Her abdominal area only measures in the 6/7th percentile. I do weekly nst's and ultrasounds but today the tech said the cord was elevated, and could not reach my doctor. Is this bad????? What does it mean? Other than her being an iugr baby, there's nothing else wrong. Up untill now she was passing her biophysical ultrasounds every week..