ANAL CANAL (67211)    ICDO TOPOGRAPHY (164)

Name Value
NAME ANAL CANAL
SURGERY CODING OTHER/MISCELLANEOUS
CODE C21.1
DEFAULT PRIMARY SITE GROUP DIGESTIVE, OTHER
5TH EDITION T-CODE HELP 
Primary Tumor (T)
T4  Tumor of any size invades adjacent organ(s),
      e.g., vagina, urethra, bladder (involvement
      of the sphincter muscle(s) alone is not
      classified as T4)
     
TX  Primary tumor cannot be assessed
T0  No evidence of primary tumor
Tis Carcinoma 'in situ'
T1  Tumor 2 cm or less in greatest dimension
T2  Tumor more than 2 cm but not more than
      5 cm in greatest dimension
T3  Tumor more than 5 cm in greastest dimension
SURGERY CODE GROUP-5TH ED ANUS NOS
5TH EDITION N-CODE HELP 
Regional Lymph Nodes (N)
      iliac and/or inguinal lymph nodes

NX  Regional lymph node(s) cannot be assessed
N0  No regional lymph node metastasis
N1  Metastasis in perirectal lymph node(s)
N2  Metastasis in unilateral internal iliac
      and/or inguinal lymph node(s)
N3  Metastasis in perirectal and inguinal
      lymph nodes and/or bilateral internal
7TH EDITION (T) CODES
  • T-CODE:   X
  • T-CODE:   IS
7TH EDITION (T) CODE HELP 
Primary Tumor (T)
T3   Tumor more than 5 cm in greatest dimension
T4   Tumor of any size invades adjacent organ(s), e.g., vagina, urethra, 
       bladder
 
TX   Primary tumor cannot be assessed
T0   No evidence of primary tumor
Tis  Carcinoma in situ (Bowen's disease, High-grade Squamous
       Intraepithelial Lesion (HSIL), Anal Intraepithelial Neoplasia
       II-III (AIN II-III)
T1   Tumor 2 cm or less in greatest dimension
T2   Tumor more than 2 cm but not more than 5 cm in greatest dimension
7TH EDITION (N) CODES
  • N-CODE:   X
7TH EDITION (N) CODE HELP 
Regional Lymph Nodes (N)
 
NX  Regional lymph nodes cannot be assessed
N0  No regional lymph node metastasis
N1  Metastasis in perirectal lymph node(s)
N2  Metastasis in unilateral internal iliac and/or inguinal lymph node(s)
N3  Metastasis in perirectal and inguinal lymph nodes and/or bilateral 
      internal iliac and/or inguinal lymph nodes
T & N CODES ANAL CANAL
TYPE
  • ANUS
  • ANAL SPHINCTER
AJCC STAGING GROUP ANAL CANAL
T-CLASS ENCODING
  • CBA
    CODE:   TX
    ACOS CODE:   TX
  • NET
    CODE:   T0
    ACOS CODE:   T0
  • Carcinoma 'in situ'
    CODE:   Tis
    ACOS CODE:   TIS
  • 2 cm or less
    CODE:   T1
    ACOS CODE:   T1
  • > 2 but not > 5 cm
    CODE:   T2
    ACOS CODE:   T2
  • > 5 cm
    CODE:   T3
    ACOS CODE:   T3
  • Any size invades adj organ(s)
    CODE:   T4
    ACOS CODE:   T4
  • NA
    CODE:   NA
    ACOS CODE:   NA
N-CLASS ENCODING
  • NCA
    CODE:   NX
    ACOS CODE:   NX
  • NRN
    CODE:   N0
    ACOS CODE:   N0
  • Perirectal lymph nodes
    CODE:   N1
    ACOS CODE:   N1
  • Unilateral internal iliac/inguinal
    CODE:   N2
    ACOS CODE:   N2
  • Perirectal/inguinal/bilateral iliac
    CODE:   N3
    ACOS CODE:   N3
  • NA
    CODE:   NA
    ACOS CODE:   NA
EXTENSION CODE SET-1ST ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
EXTENSION CODE SET-2ND ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
EXTENSION CODE SET-3RD ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
LYMPH NODE CODE SET-1ST ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
LYMPH NODE CODE SET-2ND ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
LYMPH NODE CODE SET-3RD ED ANAL CANAL, ANUS NOS, OTHER PARTS OF RECTUM
SURGERY CODE SET-1ST ED SG57 OTHER/MISCELLANEOUS
SURGERY CODE SET-2ND ED SG57 OTHER/MISCELLANEOUS