Collaborative Stage for TNM 7 - Revised 11/21/2010  [ Schema ]

NETColon

CS Lymph Nodes

CodeDescriptionTNM 7 MapTNM 6 MapSS77 MapSS2000 Map
000No regional lymph node involvementN0N0NONENONE
050Nodule(s) or foci in pericolic fat/adjacent mesentery/mesocolic fatN1*RNRN
100OBSOLETE DATA RETAINED AND REVIEWED V0203
Code 100 was defined as "Regional lymph nodes for all colon sites: Colic (NOS), Epicolic (adjacent to bowel wall), Mesocolic (NOS), Paracolic/pericolic, Nodule(s) or foci in pericolic fat/adjacent mesentery/mesocolic fat" in CSv1.  Code 100 was defined as "Regional lymph nodes for all colon sites: Colic (NOS), Epicolic (adjacent to bowel wall), Mesocolic (NOS), Paracolic/pericolic" in CSv2:V0201, V0202.  All cases should be reviewed and recoded to appropriate codes; see codes 050 and 110.

Regional lymph nodes for all colon sites:
    Colic (NOS)
    Epicolic (adjacent to bowel wall)
    Mesocolic (NOS)
    Paracolic/pericolic
N1*RNRN
110Regional lymph nodes for all colon sites:
    Colic, NOS
    Epicolic (adjacent to bowel wall)
    Mesocolic, NOS
    Paracolic/pericolic
N1*RNRN
200OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 210, 220

Regional lymph nodes, for specific subsites:
    Cecum:
        Cecal:
            Anterior (prececal),
            Posterior (retrocecal)
            Cecal, NOS
        Ileocolic
        Right colic
    Ascending colon:
        Ileocolic
        Middle colic
        Right colic
    Transverse colon and flexures:
        Inferior mesenteric for splenic flexure only
        Left colic for splenic flexure only
        Middle colic
        Right colic for hepatic flexure only
    Descending colon:
        Inferior mesenteric
        Left colic
        Sigmoid
    Sigmoid colon:
        Inferior mesenteric
        Sigmoidal (sigmoid mesenteric)
        Superior hemorrhoidal
        Superior rectal
N1*RNRN
210Regional lymph nodes, for specific subsites:
    Cecum:
        Cecal:
            Anterior (prececal),
            Posterior (retrocecal)
            Cecal, NOS
        Ileocolic
        Right colic
    Ascending colon:
        Ileocolic
        Middle colic
        Right colic
    Transverse colon and flexures:
        Inferior mesenteric for splenic flexure only
        Left colic for splenic flexure only
        Middle colic
        Right colic for hepatic flexure only
    Descending colon:
        Inferior mesenteric
        Left colic
    Sigmoid colon:
        Inferior mesenteric
        Sigmoidal (sigmoid mesenteric)
        Superior hemorrhoidal
        Superior rectal
N1*RNRN
220Regional lymph nodes for descending colon:
    Sigmoid
N1*DRN
300Regional lymph nodes for all colon sites:
    Mesenteric, NOS
    Regional lymph node(s), NOS
N1*RNRN
400OBSOLETE DATA RETAINED AND REVIEWED V0203
See code 410

Stated as N1 pathologic
N1N1RNRN
410Stated as N1 with no other information on regional lymph nodesN1N1RNRN
450OBSOLETE DATA RETAINED V0200

Stated as N2 pathologic
ERRORN2RNRN
800Lymph nodes, NOSN1N1RNRN
999Unknown; regional lymph nodes not stated
Regional lymph nodes cannot be assessed
Not documented in patient record
NXNXUU