LARYNX, SUBGLOTTIS (67322)    ICDO TOPOGRAPHY (164)

Primary Tumor (T)
      vocal cord fixation
T4  Tumor invades through cricoid or thyroid
      cartilage and/or extends to other tissues
      beyond the larynx (e.g., trachea, soft
      tissues of the neck, including thyroid, pharynx)
     
TX  Primary tumor cannot be assessed
T0  No evidence of primary tumor
Tis Carcinoma 'in situ'
T1  Tumor limited to the subglottis
T2  Tumor extends to vocal cord(s) with
      normal or impaired mobility
T3  Tumor limited to the larynx with

Regional Lymph Nodes (N)
      greatest dimension
N2b Metastasis in multiple ipsilateral lymph nodes,
      none more than 6 cm in greatest dimension
N2c Metastasis in bilateral or contralateral lymph
      nodes, none more than 6 cm in greatest dimension
N3  Metastasis in a lymph node more than 6 cm in
      greatest dimension

NX  Regional lymph nodes cannot be assessed
N0  No regional lymph node metastasis
N1  Metastasis in a single ipsilateral lymph node,
      3 cm or less in greatest dimension
N2  Choose from N2a, N2b or N2c
N2a Metastasis in a single ipsilateral lymph node
      more than 3 cm but not more than 6 cm in

• DESCRIPTION:   CBA
  CODE:   TX
• DESCRIPTION:   NET
  CODE:   T0
• DESCRIPTION:   CIS
  CODE:   Tis
• DESCRIPTION:   Subglottis
  CODE:   T1
• DESCRIPTION:   Vocal cord(s) w normal/impaired mobility
  CODE:   T2
• DESCRIPTION:   Larynx w vocal cord fixation
  CODE:   T3
• DESCRIPTION:   Invades cricoid/thryroid cartilage/beyond larynx
  CODE:   T4a
• DESCRIPTION:   Invades prevertebral space/carotid/mediastinal
  CODE:   T4b
• DESCRIPTION:   NA
  CODE:   NA

Primary Tumor (T)
      vocal cord fixation
T4a Tumor invades cricoid or thyroid cartilage
     and/or invades tissues beyond the larynx (eg,
     trachea, soft tissues of the neck including deep
     extrinsic muscle of the tongue, strap muscles,
     thyroid, or esophagus)
T4b Tumor invades prevertebral space, encases
      carotid artery, or invades mediastinal structures
     
TX  Primary tumor cannot be assessed
T0  No evidence of primary tumor
Tis Carcinoma 'in situ'
T1  Tumor limited to the subglottis
T2  Tumor extends to vocal cord(s) with
      normal or impaired mobility
T3  Tumor limited to the larynx with

• T-CODE:   X
• T-CODE:   IS
• T-CODE:   4A
• T-CODE:   4B

Primary Tumor (T)
       Tumor invades cricoid or thyroid cartilage and/or invades tissues
       beyond the larynx (e.g., trachea, soft tissues of neck including
       deep extrinsic muscles of the tongue, strap muscles, thyroid, or
       esophagus)
T4b  Very advanced local disease.
       Tumor invades prevertebral space, encases carotid artery, or
       invades mediastinal structures
 
TX   Primary tumor cannot be assessed
T0   No evidence of primary tumor
Tis  Carcinoma in situ
T1   Tumor limited to the subglottis
T2   Tumor extends to vocal cord(s) with normal or impaired mobility
T3   Tumor limited to larynx with vocal cord fixation
T4a  Moderately advanced local disease.

• N-CODE:   X
• N-CODE:   2A
• N-CODE:   2B
• N-CODE:   2C

Regional Lymph Nodes (N)
      bilateral or contralateral lymph nodes, none more than 6 cm in
      greatest dimension
N2a  Metastasis in a single ipsilateral lymph node, more than 3 cm but not
      more than 6 cm in greatest dimension
N2b  Metastasis in multiple ipsilateral lymph nodes, none more than 6 cm
      in greatest dimension Metastasis in bilateral or contralateral lymph
      nodes, none more than 6 cm in greatest dimension
N3   Metastasis in a lymph node, more than 6 cm in greatest dimension
 
NX   Regional lymph nodes cannot be assessed
N0   No regional lymph node metastasis
N1   Metastasis in a single ipsilateral lymph node, 3 cm or less in
      greatest dimension
N2   Metastasis in a single ipsilateral lymph node, more than 3 cm but not
      more than 6 cm in greatest dimension, or in multiple ipsilateral
      lymph nodes, none more than 6 cm in greatest dimension, or in

• CBA
  CODE:   TX
  ACOS CODE:   TX
• NET
  CODE:   T0
  ACOS CODE:   T0
• Carcinoma 'in situ'
  CODE:   Tis
  ACOS CODE:   TIS
• Subglottis
  CODE:   T1
  ACOS CODE:   T1
• Vocal cord(s) w normal/impaired mobility
  CODE:   T2
  ACOS CODE:   T2
• Larynx w vocal cord fixation
  CODE:   T3
  ACOS CODE:   T3
• Cricord/thyroid cartilage/beyond the larynx
  CODE:   T4
  ACOS CODE:   T4
• NA
  CODE:   NA
  ACOS CODE:   NA

• NCA
  CODE:   NX
  ACOS CODE:   NX
• NRN
  CODE:   N0
  ACOS CODE:   N0
• 1 ipsilateral, 3 cm or less
  CODE:   N1
  ACOS CODE:   N1
• N2a, N2b or N2c
  CODE:   N2
  ACOS CODE:   N2
• 1 ipsilateral, > 3 but not > 6 cm
  CODE:   N2a
  ACOS CODE:   N2A
• Multiple ipsilateral, none > 6 cm
  CODE:   N2b
  ACOS CODE:   N2B
• Bilateral/contralateral, none > 6 cm
  CODE:   N2c
  ACOS CODE:   N2C
• > 6 cm
  CODE:   N3
  ACOS CODE:   N3
• NA
  CODE:   NA
  ACOS CODE:   NA