Collaborative Stage

Note 1: Code the specific tumor size to the nearest millimeter as documented in the medical record. Use codes 990-995 only if a specific measurement is not available.
Note 2: The assignment of T1 and T2 categories for sarcomas of the orbit cavity is based on tumor size. A physician's statement of the T category may be used to code 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, other than the physician's statement of the T category. 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 1.5 centimeter (cm)" Stated as T1 with no other information on size
992	Described as "less than 2 cm," or "greater than 1.5 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"
999	Unknown; size not stated Size of tumor cannot be assessed Not documented in patient record

CS Tumor Size