How internal bleeding leads to black diarrhea. Black diarrhea is made up of digested blood. When you have black diarrhea from internal bleeding, it means that the bleeding likely happened high up in your digestive tract. When you bleed in your food pipe or stomach, you donât always vomit blood.
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DRG is a system that uses information on the claim (including revenue, diagnosis and procedure codes, patientâs age, discharge status and complications) to classify the hospital stay into an APR-DRG group. A percentage is assigned to the group.