Note: The parenchyma of the kidney includes the following structures: cortex (outer layer of kidney) and renal columns; medulla, medullary rays, renal pyramids, and renal papillae; nephrons (renal corpuscle, loops of Henle, proximal and distal tubules, collecting duct), glomerulus, and Bowman's capsule. The most common site for renal parenchymal cancer to develop is in the proximal convoluted tubule. Tumor extension from one of these structures into another would be coded to 10 unless there were further signs of involvement.
|10||Invasive cancer confined to kidney cortex and/or medulla||*||L||L|
|39||Stated as T3, NOS||T3NOS||RE||RE|
|62||Vena cava above diaphragm or invades the wall of the vena cava||T3c||RE||RE|
|65||Extension beyond Gerota's fascia to:
|67||Extension beyond Gerota's fascia to:
|80||Further contiguous extension
|95||No evidence of primary tumor||T0||U||U|
* For codes 10, 20, and 30 ONLY, the T category is assigned based on the value of tumor size, as shown in the Extension Size Table for this site.