Pth level 13, calcium 9.8 vitamin d 9.9 what does this all mean.

Not all that much: Your calcium is normal and your vitamin d level is low. For a more complete answer you would have to tell what symptoms, if any, lead to these test being ordered in the first place.

Vitamin d deficiency: The only thing it says is you have low vitamin d. Talk to your doctor about vitamin d replacement. Pth and calcium is normal.