Collaborative Stage Data Set - Revised 08/07/2013 FINAL

NETAmpulla

CS Tumor Size

Note: The assignment of the T1 and T2 categories for neuroendocrine tumors (NET) of ampulla of Vater is based on tumor size. A physician's statement of the T category may be used to code both CS Tumor Size and/or CS Extension if this is the only information in the medical record regarding one or both of these fields. However the two fields are coded independently; for example, the record may document size but not extension. Use codes 991 and 992 as appropriate to code CS Tumor Size based on a statement of T when no other size information is available.

Code	Description
000	No mass/tumor found
001-988	001 - 988 millimeters (mm) (Exact size to nearest mm)
989	989 mm or larger
990	Microscopic focus or foci only and no size of focus given
991	Described as "less than or equal to 1 centimeter (cm)" Stated as T1 with no other information on size
992	Described as "less than 2 cm," or "greater than 1 cm," or "between 1 cm and 2 cm" Stated as T2 with no other information on size
993	Described as "less than 3 cm," or "greater than 2 cm," or "between 2 cm and 3 cm"
994	Described as "less than 4 cm," or "greater than 3 cm," or "between 3 cm and 4 cm"
995	Described as "less than 5 cm," or "greater than 4 cm," or "between 4 cm and 5 cm"
996	OBSOLETE DATA CONVERTED V0203 See code 992 Described as "greater than 1 cm"
997	OBSOLETE DATA CONVERTED V0203 See code 991 Stated as T1, NOS with no other information on size
998	OBSOLETE DATA CONVERTED V0203 See code 992 Stated as T2, NOS with no other information on size
999	Unknown; size not stated Size of tumor cannot be assessed Not documented in patient record