ICD 10 Code C18.7: Malignant Neoplasm of Sigmoid Colon Pabau 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** Ischemic colitis or melanosis coli: a case report World Journal of Emergency Surgery Springer Nature Link Melanosis coli: a case report The Egyptian Journal of Internal Medicine Springer Nature Link Z86.010 Personal history of colonic polyps Pathology Guide