Not responsible for your mistake

As long as I am on medical Aid I have been using Pathcare fpr blood works and if its not one thing its the other, like causing my newborn to bleed all overthe me and second time bruising his finger, messing up his blood and having to draw all the time due to negligence and thats just the start of it... My problem this time however, is that I am being forced to pay an account my medical aid wont cover because pathcare has used the wrong ICD codes... I feelbit if unfair, as I went in to their rooms to quarry it and wasI told tohim refer back to my doctor... My doctor showed them she gave the right codes and they agreed, now almost 6 months later I have to bare the burn due to their negligence... I am not happy and feel this bill needs to be sorted out as it was not my fault.