Malignant neoplasm of anus and anal canal
Notes: Malignant neoplasm of anal sphincter ; Malignant neoplasm of anorectal junction ; Malignant neoplasm of anorectum ; Primary malignant neoplasm of two or more contiguous sites of rectum, anus and anal canal ; malignant carcinoid tumors of the colon (C7A.02-) ; malignant melanoma of anal margin (C43.51) ; malignant melanoma of anal skin (C43.51) ; malignant melanoma of perianal skin (C43.51) ; other and unspecified malignant neoplasm of anal margin (C44.500, C44.510, C44.520, C44.590) ; other and unspecified malignant neoplasm of anal skin (C44.500, C44.510, C44.520, C44.590) ; other and unspecified malignant neoplasm of perianal skin (C44.500, C44.510, C44.520, C44.590)