Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/26/2010 [ Schema ]

CS Site-Specific Factor 2
Nuclear NM23 Staining

Note 1: The NM23 gene located on chromosome 17 encodes the protein nucleoside diphosphate kinase. The presence of nuclear NM23 protein may be a good marker for predicting the metastatic potential of certain tumors. The value is expressed as the percentage of carcinoma cells in the tissue sample with positive nuclear staining for the NM23 protein.
Note 2: Record whether nuclear NM23 staining is present as stated on the test report.

Code	Description
010	Positive for NM23 staining
020	Negative for NM23 staining
030	Borderline; undetermined if positive or negative
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable for this site
988	Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)
997	Test performed, results not available
998	Test not done (test not ordered and not performed) No histologic examination of primary site
999	Unknown or no information Not documented in patient record