CS Tumor Size

This input is used for staging


**Note 1**: The assignment of the T1 categories for neuroendocrine tumors (NET) of the colon/rectum 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. **Note 2**: Codes 992-995 were obsolete in CS Version 2, V0201 and V0202. They are made active in V0203. Tumors that now fall into one of these categories would have been coded as 011, 021, or 999 in V0201/V0202.




NAACCR #2800
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 centimeter (cm)"

Stated as T1a 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 T1b or T1 [NOS] 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"

Familial/multiple polyposis (M-8220/8221)
999 Unknown; size not stated
Size of tumor cannot be assessed
Not documented in patient record