THYROID GLAND (67739)    ICDO TOPOGRAPHY (164)

Name Value
NAME THYROID GLAND
SURGERY CODING THYROID
CODE C73.9
DEFAULT PRIMARY SITE GROUP THYROID
5TH EDITION T-CODE HELP 
Primary Tumor (T)
      limited to the thyroid
T2  Tumor more than 1 cm but not more than 4 cm
      in greatest dimension limited to the thyroid
T3  Tumor more than 4 cm in greatest dimension
      limited to the thyroid
T4  Tumor of any size extending beyond the thyroid
      capsule
     
Note: All categories may be subdivided:
(a) solitary tumor, (b) multifocal tumor
(the largest determines the classification)

TX  Primary tumor cannot be assessed
T0  No evidence of primary tumor
T1  Tumor 1 cm or less in greatest dimension
SURGERY CODE GROUP-5TH ED THYROID GLAND
5TH ED-SURGICAL APPROACH CODES
  • None
    CODE:   0
  • Endoscopy, NOS
    CODE:   1
  • Endoscopy, not image guided
    CODE:   2
  • Endoscopy, image guided
    CODE:   3
  • Open, NOS
    CODE:   4
  • Open, not assisted by endoscopy
    CODE:   5
  • Open, assisted by endoscopy
    CODE:   6
  • Unknown; not stated; death certificate ONLY
    CODE:   9
5TH EDITION N-CODE HELP 
Regional Lymph Nodes (N)
N1b Metastasis in bilateral, midline, or contralateral
           cervical or mediastinal lymph node(s)

Regional lymph nodes are the cervical
and upper mediastinal lymph nodes.

NX  Regional lymph nodes cannot be assessed
N0  No regional lymph node metastasis
N1  Regional lymph node metastasis
N1a Metastasis in ipsilateral cervical lymph node(s)
5TH ED-SURGERY PRIMARY SITE
  • None; no surgery; autopsy ONLY
    CODE:   0
    SPS 2023 CODE:   A000
  • Subtotal or near total thyroidectomy
    CODE:   40
    SPS 2023 CODE:   A400
  • Total thyroidectomy
    CODE:   50
    SPS 2023 CODE:   A500
  • Thyroidectomy, NOS
    CODE:   80
    SPS 2023 CODE:   A800
  • Surgery, NOS
    CODE:   90
    SPS 2023 CODE:   A900
  • Unknown; death certificate ONLY
    CODE:   99
    SPS 2023 CODE:   A990
  • Local tumor destruction, NOS
    CODE:   13
    SPS 2023 CODE:   A130
  • Removal of less than a lobe, NOS
    CODE:   25
    SPS 2023 CODE:   A250
  • Local surgical excision
    CODE:   26
    SPS 2023 CODE:   A260
  • Removal of a partial lobe ONLY
    CODE:   27
    SPS 2023 CODE:   A270
  • Removal of less than a lobe, NOS (ROADS)
    CODE:   10
  • Removal of less than a lobe, local surgical excision (ROADS)
    CODE:   11
  • Removal of a partial lobe ONLY (ROADS)
    CODE:   12
  • Lobectomy and/or isthmectomy
    CODE:   20
    SPS 2023 CODE:   A200
  • Lobectomy ONLY
    CODE:   21
    SPS 2023 CODE:   A210
  • Isthmectomy ONLY
    CODE:   22
    SPS 2023 CODE:   A220
  • Lobectomy WITH isthmus
    CODE:   23
    SPS 2023 CODE:   A230
  • Removal of a lobe and partial removal of contralateral lobe
    CODE:   30
    SPS 2023 CODE:   A300
5TH ED-SURGICAL MARGINS
  • All margins grossly and microscopically negative
    CODE:   0
  • Margins involved, NOS
    CODE:   1
  • Microscopic involvement
    CODE:   2
  • Macroscopic involvement
    CODE:   5
  • Margins not evaluable
    CODE:   7
  • No surgery of primary site
    CODE:   8
  • Unk whether margins involved or negative; death cert ONLY
    CODE:   9
5TH ED-SCOPE LYMPH NODE SURG
  • No regional lymph nodes removed
    CODE:   0
  • Regional lymph node(s) removed, NOS
    CODE:   1
  • Neck dissection, NOS
    CODE:   2
  • Neck dissection, selective, limited; nodal sampling
    CODE:   3
  • Neck dissection, modified/modified radical
    CODE:   4
  • Neck dissection, radical
    CODE:   5
  • Unknown; not stated; death certificate ONLY
    CODE:   9
5TH ED-SURGERY OTHER REG SITES
  • None
    CODE:   0
  • Surg to other sites/nodes, NOS; unk if regional or distant
    CODE:   1
  • Other regional site(s)
    CODE:   2
  • Distant lymph node(s)
    CODE:   3
  • Distant site(s)
    CODE:   4
  • Combination of 4 WITH 2 or 3
    CODE:   5
  • Unknown; not stated; death certificate ONLY
    CODE:   9
5TH ED-RECONSTRUCTION
  • NA
    CODE:   9
5TH ED-BIOPSY PROCEDURE CODES
  • Not a breast or prostate primary
    CODE:   0
5TH ED-GUIDANCE CODES
  • Not a breast or prostate primary
    CODE:   0
6TH EDITION (T) CODES
  • DESCRIPTION:   CBA
    CODE:   TX
  • DESCRIPTION:   NET
    CODE:   T0
  • DESCRIPTION:   2 cm or less limited to thyroid
    CODE:   T1
  • DESCRIPTION:   > 2 cm, but not > 4 cm, limited to thyroid
    CODE:   T2
  • DESCRIPTION:   > 4 cm limited to thyroid or mininal extrathyroid ext
    CODE:   T3
  • DESCRIPTION:   Any size beyond thyroid capsule
    CODE:   T4a
  • DESCRIPTION:   Prevertebral fascia/carotid artery
    CODE:   T4b
  • DESCRIPTION:   NA
    CODE:   NA
6TH EDITION (T) CODE HELP 
Primary Tumor (T)
      extrathyroid extension (eg, extension to
      sternothyroid muscle or perithyroid soft tissues)
T4a Tumor of any size extending beyond the thyroid capsule
      to invade subcutaneous soft tissues, larynx, trachea,
      esophagus, or recurrent laryngeal nerve
T4b Tumor invades prevertebral fascia or
      encases carotid artery or mediastinal vessels

All anaplastic carcinomas are considered T4 tumors.

     
T4a Intrathyroidal anaplastic carcinoma - surgically resectable
T4b Extrathyroidal anaplastic carcinoma - surgically unresectable 
TX  Primary tumor cannot be assessed
T0  No evidence of primary tumor
T1  Tumor 2 cm or less in greatest dimension limited to the thyroid
T2  Tumor more than 2 cm, but not more than 4
      cm, in greatest dimension limited to the thyroid
T3  Tumor more than 4 cm in greatest dimension
      limited to the thyroid or any tumor with minimal
6TH EDITION (N) CODES
  • DESCRIPTION:   NCA
    CODE:   NX
  • DESCRIPTION:   NRN
    CODE:   N0
  • DESCRIPTION:   Regional lymph node metastasis
    CODE:   N1
  • DESCRIPTION:   Metastasis to Level VI
    CODE:   N1a
  • DESCRIPTION:   Metastasis to uni/bi/contra-lateral lymph nodes
    CODE:   N1b
  • DESCRIPTION:   NA
    CODE:   NA
6TH EDITION (N) CODE HELP 
Regional Lymph Nodes (N)
N1a Metastasis to Level VI (pretracheal,
      paratracheal, and prelaryngeal/Delphian lymph
      nodes)
N1b Metastasis to unilateral, bilateral, or
      contralateral cervical or superior mediastinal
      lymph nodes

Regional lymph nodes are the central
compartment, lateral cervical, and upper
mediastinal lymph nodes.

NX  Regional lymph nodes cannot be assessed
N0  No regional lymph node metastasis
N1  Regional lymph node metastasis
7TH EDITION (T) CODES
  • T-CODE:   X
  • T-CODE:   1A
  • T-CODE:   1B
  • T-CODE:   4A
  • T-CODE:   4B
7TH EDITION (T) CODE HELP 
Primary Tumor (T)
       limited to the thyroid
T3   Tumor more than 4 cm in greatest dimension limited to the thyroid, or
       any tumor with minimal extrathyroid extension (e.g., extension to
       sternothyroid muscle or perithyroid soft tissues)
T4a  Moderately advanced disease.
       Tumor of any size extending beyond the thyroid capsule to invade
       subcutaneous soft tissues, larynx, trachea, esophagus, or recurrent
       laryngeal nerve
     Intrathyroidal anaplastic carcinoma
T4b  Very advanced disease.
 
       Tumor invades prevertebral fascia or encases carotid artery or
       mediastinal vessels
     Anaplastic carcinoma with gross extrathyroid extension
TX   Primary tumor cannot be assessed
T0   No evidence of primary tumor
T1   Tumor 2 cm or less in greatest dimension limited to the thyroid
T1a  Tumor 1 cm or less, limited to the thyroid
T1b  Tumor more than 1 cm but not more than 2 cm in greatest dimension, 
       limited to the thyroid
T2   Tumor more than 2 cm but not more than 4 cm in greatest dimension,
7TH EDITION (N) CODES
  • N-CODE:   X
  • N-CODE:   1A
  • N-CODE:   1B
7TH EDITION (N) CODE HELP 
Regional Lymph Nodes (N)
       mediastinal lymph nodes (Level VII)
 
NX   Regional lymph nodes cannot be assessed.
N0   No regional lymph node metastasis
N1   Regional lymph node metastasis
N1a  Metastasis to Level VI (pretracheal, paratracheal, and 
       prelaryngeal/Delphian lymph nodes)
N1b  Metastasis to unilateral, bilateral, or contralateral cervical
       (Levels I, II, III, IV or V) or retropharyngeal or superior
T & N CODES THYROID GLAND
TYPE
  • THYROID, NOS
  • THYROGLOSSAL DUCT
AJCC STAGING GROUP THYROID GLAND
T-CLASS ENCODING
  • CBA
    CODE:   TX
    ACOS CODE:   TX
  • > 4 cm, solitary
    CODE:   T3a
    ACOS CODE:   T3A
  • > 4 cm, multifocal
    CODE:   T3b
    ACOS CODE:   T3B
  • Any size beyond thyroid
    CODE:   T4
    ACOS CODE:   T4
  • Any size beyond thyroid, solitary
    CODE:   T4a
    ACOS CODE:   T4A
  • Any size beyond thyroid, multifocal
    CODE:   T4b
    ACOS CODE:   T4B
  • NA
    CODE:   NA
    ACOS CODE:   NA
  • NET
    CODE:   T0
    ACOS CODE:   T0
  • 1 cm or less
    CODE:   T1
    ACOS CODE:   T1
  • 1 cm or less, solitary
    CODE:   T1a
    ACOS CODE:   T1A
  • 1 cm or less, multifocal
    CODE:   T1b
    ACOS CODE:   T1B
  • > 1 but not > 4 cm
    CODE:   T2
    ACOS CODE:   T2
  • > 1 but not > 4 cm, solitary
    CODE:   T2a
    ACOS CODE:   T2A
  • > 1 but not > 4 cm, multifocal
    CODE:   T2b
    ACOS CODE:   T2B
  • > 4 cm
    CODE:   T3
    ACOS CODE:   T3
N-CLASS ENCODING
  • NCA
    CODE:   NX
    ACOS CODE:   NX
  • NRN
    CODE:   N0
    ACOS CODE:   N0
  • Regional lymph node metastasis
    CODE:   N1
    ACOS CODE:   N1
  • Ipsilateral cervical lymph node(s)
    CODE:   N1a
    ACOS CODE:   N1A
  • Bilateral, midline/contralateral cervical
    CODE:   N1b
    ACOS CODE:   N1B
  • NA
    CODE:   NA
    ACOS CODE:   NA
EXTENSION CODE SET-1ST ED THYROID GLAND
EXTENSION CODE SET-2ND ED THYROID GLAND
EXTENSION CODE SET-3RD ED THYROID GLAND
LYMPH NODE CODE SET-1ST ED THYROID GLAND
LYMPH NODE CODE SET-2ND ED THYROID GLAND
LYMPH NODE CODE SET-3RD ED THYROID GLAND
SURGERY CODE SET-1ST ED SG60 THYROID
SURGERY CODE SET-2ND ED SG60 THYROID