Medical coders must assign and input the correct diagnostic code to establish the amount of money a health care provider or facility gets reimbursed from the insurer. In order to maintain consistency, they must utilize standard classification systems, like ICD-9-CM/CPT/HCPCS/DRG/APC.
Sometimes a small amount of spotting or vaginal bleeding is one of the first symptoms of pregnancy. Known as implantation bleeding, it happens when the fertilised egg attaches to the lining of the uterus â about 10 to 14 days after fertilization.
A few days after conception, the fertilized egg attaches itself to wall of the uterus. This can cause one of the earliest signs of pregnancy -- spotting and, sometimes, cramping. That's called implantation bleeding. It occurs anywhere from six to 12 days after the egg is fertilized.