Intraoperative discovery of melanosis coli during emergent bowel resection for perforation BMJ Case Reports This is a very rare case of metastatic oral mucosal melanoma to the colon with an unusual presentation mimicking melanosis coli. The colonoscopy findings show no mass effect but multiple hyperpigmented lesions Colon Polyps: ICD 10 Coding AAPC Knowledge Center “Melanosis” in the small and large intestine Melanosis coli Wikipedia Medical Coding Crohn's Disease Coding Clarified