. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: Dis Colon Rectum. 2021 Jul 1;64(7):805–811. doi: 10.1097/DCR.0000000000002009

Appendix Table 2.

Diagnosis codes for anal dysplasia or anal cancer (utilized in selecting study population).

DIAGNOSIS DESCRIPTION	ICD-9 code	ICD-10 code
Anal dysplasia	569.44	K62.82
Carcinoma in situ of the anus and anal canal	230.5, 230.6	D01.3
Anal cancer precursor lesion	569.44	K62.82
Malignant neoplasm of the anal canal	154.2	C21.1
Malignant neoplasm of the anus, unspecified/Anal cancer	154.3	C21.0
Malignant neoplasm of cloacogenic zone/Overlap sites rectum anus and anal canal	154.8	C21.2, C21.8
Abnormal pap smear anus	796.70	R85.619
Abnormal pap smear anus with ASCUS	796.71	R85.610
Abnormal pap smear anus ASCUS cannot rule out high grade	796.72	R85.611
Abnormal pap smear anus with Low grade intraepithelial lesion (LGSIL)	796.73	R85.612
Abnormal pap smear anus with High grade intraepithelial lesion (HGSIL)	796.74	R85.613
Anal HPV positive	796.75, 796.79	R85.81, R85.82
Anal malignancy on pap smear	796.76	R85.614