What is the icd-9 code for cecal mass?

Based on this definition: "Cecal mass is a space occupying lesion that involves the first part (cecum) of the colon. It can be benign or cancerous," I would code 568.89. This is the code in the alphabetic index under "lesion, colon." The tabular index does not list "lesion" under this code but it doesn't exclude it, either, so based on the alphabetic index, 568.89 should be acceptable.