ICD-10-CM > C00-D49 > D37-D48 > D41 > D41.0 D41.0 Neoplasm of uncertain behavior of kidney Non-Billable/Non-Specific Type 1 Excludes neoplasm of uncertain behavior of renal pelvis (D41.1-) Codes D41.00Neoplasm of uncertain behavior of unspecified kidneyD41.01Neoplasm of uncertain behavior of right kidneyD41.02Neoplasm of uncertain behavior of left kidney