ICD 10 CM Diseases of the Digestive System Hematemesis, Melena, and Unspecified GI Hemorrhage Solved] ICD 10 CM and PCS codes. A 75 year old male was admitted to the hospital after coming to the emergency department Course Hero ICD 10 diagnosis codes used for the identification of rotavirus, Download Table Constipation ICD 10 Codes: Full List with Clinical Use MALENA: Melena is the medical term for black, tarry stools caused by the presence of digested blood. It typically indicates bleeding in the upper gastrointestinal (GI) tract, such as the: Stomach Duodenum Diverticular Disease Risk Factors, Symptoms, and ICD 10 Codes