ICD 10 Coding for Loose Bowel Movements Melanosis coli Melanosis Ilei Clinical Gastroenterology and Hepatology MELANOSIS COLI** Melanosis coli is a disorder of pigmentation of the bowel wall. Histology demonstrates pigment laden macrophages It is associated with laxative abuse, especially **anthraquinone compounds such as senna** ICD 10 Coding for Status Post Cholecystectomy Melanosis coli: Symptoms, causes, treatment, and more