Colorectal cancer ICD-10 C18-C20/C21 OMIM 114500 MedlinePlus 000262 DiseasesDB 2975 ICD-O: M8140/3 (95% of cases) ICD-9 153.0-154.1 NCI มะเร็งลำไส้ใหญ่ eMedicine med/413 med/1994 ped/3037