ICD-10-CM > C00-D49 > D00-D09 > D09 > D09.2 D09.2 Carcinoma in situ of eye Non-Billable/Non-Specific Type 1 Excludes carcinoma in situ of skin of eyelid (D04.1-) Codes D09.20Carcinoma in situ of unspecified eyeD09.21Carcinoma in situ of right eyeD09.22Carcinoma in situ of left eye