Canadian Staging Data Elements for TNM Collection, 2018 Page 1 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Path T CCR Name: AJCC Pathologic T (T45) Revised CCR Name: AJCC/UICC Pathologic T Item Length: 15 Alphanumeric NAACCR Item # 1011
Description: The site-specific code evaluating the primary tumour pathologically (T) and reflects the tumour size and/or extension as recorded. Pathological stage uses all data for clinical staging; the evidence acquired before treatment, supplemented or modified by the additional evidence acquired during and from surgery, particularly from pathologic examination.
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition Code Definition
(blank) Not recorded pT1d pT1d cTX cTX cT2 cT2
pTX pTX pT2 pT2 cT0 cT0 cT2a cT2a
pT0 pT0 pT2a pT2a cTa cTa cT2a1 cT2a1
pTa pTa pT2a1 pT2a1 cTis cTis cT2a2 cT2a2
pTis pTis pT2a2 pT2a2 cTis(DCIS) cTis(DCIS) cT2b cT2b
pTis(DCIS) pTis(DCIS) pT2b pT2b cTis(LAMN) cTis(LAMN) cT2c cT2c
pTis(LAMN) pTis(LAMN) pT2c pT2c cTis(Paget) cTis(Paget) cT2d cT2d
pTis(Paget) pTis(Paget) pT2d pT2d cT1 cT1 cT3 cT3
pT1 pT1 pT3 pT3 cT1mi cT1mi cT3a cT3a
pT1mi pT1mi pT3a pT3a cT1a cT1a cT3b cT3b
pT1a pT1a pT3b pT3b cT1a1 cT1a1 cT3c cT3c
pT1a1 pT1a1 pT3c pT3c cT1a2 cT1a2 cT3d cT3d
pT1a2 pT1a2 pT3d pT3d cT1b cT1b cT3e cT3e
pT1b pT1b pT4 pT4 cT1b1 cT1b1 cT4 cT4
pT1b1 pT1b1 pT4a pT4a cT1b2 cT1b2 cT4a cT4a
pT1b2 pT1b2 pT4b pT4b cT1c cT1c cT4b cT4b
pT1c pT1c pT4c pT4c cT1c1 cT1c1 cT4c cT4c
pT1c1 pT1c1 pT4d pT4d cT1c2 cT1c2 cT4d cT4d
pT1c2 pT1c2 pT4e pT4e cT1c3 cT1c3 cT4e cT4e
pT1c3 pT1c3 cT1d cT1d 88 Not applicable
Canadian Staging Data Elements for TNM Collection, 2018 Page 2 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Path N CCR Name: AJCC Pathologic N (T46) Revised CCR Name: AJCC/UICC Pathologic N Item Length: 15 Alphanumeric NAACCR Item # 1012
Description: The site-specific code identifying the absence or presence of pathological regional lymph node (N) metastasis and describes the extent of regional lymph node metastasis as recorded. Pathological stage uses all data for clinical staging; the evidence acquired before treatment, supplemented or modified by the additional evidence acquired during and from surgery, particularly from pathologic examination.
Based on AJCC 8th Edition TNM
Code Definition Code Definition
(blank) Not recorded cNX cNX
pNX pNX cN0 cN0
pN0 pN0 cN0(i+) cN0(i+)
pN0(i+) pN0(i+) cN0a cN0a
pN0(mol+) pN0(mol+) cN0b cN0b
pN0a pN0a cN1 cN1
pN1 pN1 cN1mi cN1mi
pN1mi pN1mi cN1a cN1a
pN1a pN1a cN1b cN1b
pN1a(sn) pN1a(sn) cN1c cN1c
pN1b pN1b cN2 cN2
pN1c pN1c cN2mi cN2mi
pN2 pN2 cN2a cN2a
pN2mi pN2mi cN2b cN2b
pN2a pN2a cN2c cN2c
pN2b pN2b cN3 cN3
pN2c pN2c cN3a cN3a
pN3 pN3 cN3b cN3b
pN3a pN3a cN3c cN3c
pN3b pN3b 88 Not applicable
pN3c pN3c
Canadian Staging Data Elements for TNM Collection, 2018 Page 3 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Path M CCR Name: AJCC Pathologic M (T47) Revised CCR Name: AJCC/UICC Pathologic M Item Length: 15 Alphanumeric NAACCR Item # 1013
Description: The site-specific code identifying the presence or absence of pathological distant metastasis (M) as recorded. Pathological stage uses all data for clinical staging; the evidence acquired before treatment, supplemented or modified by the additional evidence acquired during and from surgery, particularly from pathologic examination.
Code Definition Code Definition
(blank) Not recorded pM1 pM1
cM0 cM0 pM1a pM1a
cM0(i+) cM0(i+) pM1a(0) pM1a(0)
cM1 cM1 pM1a(1) pM1a(1)
cM1a cM1a pM1b pM1b
cM1a(0) cM1a(0) pM1b(0) pM1b(0)
cM1a(1) cM1a(1) pM1b(1) pM1b(1)
cM1b cM1b pM1c pM1c
cM1b(0) cM1b(0) pM1c(0) pM1c(0)
cM1b(1) cM1b(1) pM1c(1) pM1c(1)
cM1c cM1c pM1d pM1d
cM1c(0) cM1c(0) pM1d(0) pM1d(0)
cM1c(1) cM1c(1) pM1d(1) pM1d(1)
cM1d cM1d 88 Not applicable
cM1d(0) cM1d(0)
cM1d(1) cM1d(1)
Based on AJCC 8th Edition TNM
Canadian Staging Data Elements for TNM Collection, 2018 Page 4 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Path Stage Group CCR Name: AJCC Pathologic TNM Stage Group (T49) Revised CCR Name: AJCC/UICC Pathologic TNM Stage Group Item Length: 15 Alphanumeric NAACCR Item # 1014
Description: The site-specific code identifying the anatomic extent of disease based on the pathologic T, N and M elements as recorded in TNM Pathologic T, N and M fields. (Table on next page)
Canadian Staging Data Elements for TNM Collection, 2018 Page 5 Revision Date: March 2018
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition Code Definition
(blank) Not recorded 2 II 3 III 4 IV
0 0 2A IIA 3A IIIA 4A IVA
0a 0a 2A1 IIA1 3A1 IIIA1 4A1 IVA1
0is 0is 2A2 IIA2 3A2 IIIA2 4A2 IVA2
1 I 2B IIB 3B IIIB 4B IVB
1A IA 2C IIC 3C IIIC 4C IVC
1A1 IA1 2E IIE 3C1 IIIC1 4:0 IV:0
1A2 IA2 2 bulky II bulky 3C2 IIIC2 4:1 IV:1
1A3 IA3 2:0 II:0 3D IIID 4:2 IV:2
1B IB 2:1 II:1 3:0 III:0 4:3 IV:3
1B1 IB1 2:2 II:2 3:1 III:1 4:4 IV:4
1B2 IB2 2:3 II:3 3:2 III:2 4:5 IV:5
1C IC 2:4 II:4 3:3 III:3 4:6 IV:6
1E IE 2:5 II:5 3:4 III:4 4:7 IV:7
1S IS 2:6 II:6 3:5 III:5 4:8 IV:8
1:0 I:0 2:7 II:7 3:6 III:6 4:9 IV:9
1:1 I:1 2:8 II:8 3:7 III:7 4:10 IV:10
1:2 I:2 2:9 II:9 3:8 III:8 4:11 IV:11
1:3 I:3 2:10 II:10 3:9 III:9 4:12 IV:12
1:4 I:4 2:11 II:11 3:10 III:10 4:13 IV:13
1:5 I:5 2:12 II:12 3:11 III:11 4:14 IV:14
1:6 I:6 2:13 II:13 3:12 III:12 4:15 IV:15
1:7 I:7 2:14 II:14 3:13 III:13 4:16 IV:16
1:8 I:8 2:15 II:15 3:14 III:14 4:17 IV:17
1:9 I:9 2:16 II:16 3:15 III:15 4:18 IV:18
1:10 I:10 2:17 II:17 3:16 III:16 4:19 IV:19
1:11 I:11 2:18 II:18 3:17 III:17 4:20 IV:20
1:12 I:12 2:19 II:19 3:18 III:18 4:21 IV:21
1:13 I:13 2:20 II:20 3:19 III:19 4:22 IV:22
1:14 I:14 2:21 II:21 3:20 III:20 4:23 IV:23
1:15 I:15 2:22 II:22 3:21 III:21 4:24 IV:24
1:16 I:16 2:23 II:23 3:22 III:22 4:25 IV:25
1:17 I:17 2:24 II:24 3:23 III:23 OccultCarcinoma Occult carcinoma
1:18 I:18 2:25 II:25 3:24 III:24 88 Not applicable
1:19 I:19 3:25 III:25 99 Unknown
1:20 I:20
1:21 I:21
1:22 I:22
1:23 I:23
1:24 I:24
1:25 I:25
Canadian Staging Data Elements for TNM Collection, 2018 Page 6 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: AJCC TNM Path T Suffix CCR Name: None – New Data Item Item Length: 1 NAACCR Item # 1032
Description: Detailed site-specific codes for the pathological T category suffix as defined by AJCC and recorded by the physician.
Code Definition
m Multiple synchronous tumors OR For thyroid differentiated and anaplastic only, Multifocal tumor
s For thyroid differentiated and anaplastic only, Solitary tumor
blank No information available; not recorded
Canadian Staging Data Elements for TNM Collection, 2018 Page 7 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: AJCC TNM Path N Suffix CCR Name: None – New Data Item Item Length: 2 NAACCR Item # 1035
Description: Detailed site-specific codes for the pathological N category suffix as defined by AJCC and recorded by the physician.
Code Definition
sn Sentinel node procedure without resection of nodal basin
f FNA or core needle biopsy without resection of nodal basin
blank No suffix needed or appropriate; not recorded
Canadian Staging Data Elements for TNM Collection, 2018 Page 8 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Clinical T CCR Name: AJCC Clinical T (T42) Revised CCR Name: AJCC/UICC Clinical T Item Length: 15 Alphanumeric NAACCR Item # 1001
Description: The site-specific code evaluating the primary tumour clinically (T) and reflects the tumour size and/or extension as recorded. Clinical stage is assigned prior to any cancer-directed treatment and should not be changed based on subsequent information.
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition
(blank) Not recorded cT1b1 cT1b1 cT3 cT3
cTX cTX cT1b2 cT1b2 cT3a cT3a
cT0 cT0 cT1c cT1c cT3b cT3b
cTa cTa cT1c1 cT1c1 cT3c cT3c
cTis cTis cT1c2 cT1c2 cT3d cT3d
cTis(DCIS) cTis(DCIS) cT1c3 cT1c3 cT3e cT3e
cTis(LAMN) cTis(LAMN) cT1d cT1d cT4 cT4
cTis(Paget) cTis(Paget) cT2 cT2 cT4a cT4a
cT1 cT1 cT2a cT2a cT4b cT4b
cT1mi cT1mi cT2a1 cT2a1 cT4c cT4c
cT1a cT1a cT2a2 cT2a2 cT4d cT4d
cT1a1 cT1a1 cT2b cT2b cT4e cT4e
cT1a2 cT1a2 cT2c cT2c 88 Not applicable
cT1b cT1b cT2d cT2d
Canadian Staging Data Elements for TNM Collection, 2018 Page 9 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Clinical N CCR Name: AJCC Clinical N (T43) Revised CCR Name: AJCC/UICC Clinical N Item Length: 15 Alphanumeric NAACCR Item # 1002
Description: The site-specific code identifying the absence or presence of clinical regional lymph node (N) metastasis and describes the extent of regional lymph node metastasis as recorded. Clinical stage is assigned prior to any cancer-directed treatment and should not be changed based on subsequent information.
Based on AJCC 8th Edition TNM
Code Definition Code Definition
(blank) Not recorded cN2 cN2
cNX cNX cN2mi cN2mi
cN0 cN0 cN2a cN2a
cN0(i+) cN0(i+) cN2b cN2b
cN0a cN0a cN2c cN2c
cN0b cN0b cN3 cN3
cN1 cN1 cN3a cN3a
cN1mi cN1mi cN3b cN3b
cN1a cN1a cN3c cN3c
cN1b cN1b 88 Not applicable
cN1c cN1c
Canadian Staging Data Elements for TNM Collection, 2018 Page 10 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Clinical M CCR Name: AJCC Clinical M (T44) Revised CCR Name: AJCC/UICC Clinical M Item Length: 15 Alphanumeric NAACCR Item # 1003
Description: The site-specific code identifying the presence or absence of clinical distant metastasis (M) as recorded. Clinical stage is assigned prior to any cancer-directed treatment and should not be changed based on subsequent information.
Code Definition Code Definition
(blank) Not recorded pM1 pM1
cM0 cM0 pM1a pM1a
cM0(i+) cM0(i+) pM1a(0) pM1a(0)
cM1 cM1 pM1a(1) pM1a(1)
cM1a cM1a pM1b pM1b
cM1a(0) cM1a(0) pM1b(0) pM1b(0)
cM1a(1) cM1a(1) pM1b(1) pM1b(1)
cM1b cM1b pM1c pM1c
cM1b(0) cM1b(0) pM1c(0) pM1c(0)
cM1b(1) cM1b(1) pM1c(1) pM1c(1)
cM1c cM1c pM1d pM1d
cM1c(0) cM1c(0) pM1d(0) pM1d(0)
cM1c(1) cM1c(1) pM1d(1) pM1d(1)
cM1d cM1d 88 Not applicable
cM1d(0) cM1d(0)
cM1d(1) cM1d(1)
Based on AJCC 8th Edition TNM
Canadian Staging Data Elements for TNM Collection, 2018 Page 11 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Clinical Stage Group CCR Name: AJCC Clinical TNM Stage Group (T48) Revised CCR Name: AJCC/UICC Clinical TNM Stage Group Item Length: 15 Alphanumeric NAACCR Item # 1004
Description: The site-specific code identifying the anatomic extent of disease based on the clinical T, N and M elements as recorded in TNM Clinical T, N and M fields. (Table on next page)
Canadian Staging Data Elements for TNM Collection, 2018 Page 12 Revision Date: March 2018
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition Code Definition
(blank) Not recorded 2 II 3 III 4 IV
0 0 2A IIA 3A IIIA 4A IVA
0a 0a 2A1 IIA1 3A1 IIIA1 4A1 IVA1
0is 0is 2A2 IIA2 3A2 IIIA2 4A2 IVA2
1 I 2B IIB 3B IIIB 4B IVB
1A IA 2C IIC 3C IIIC 4C IVC
1A1 IA1 2E IIE 3C1 IIIC1 4:0 IV:0
1A2 IA2 2 bulky II bulky 3C2 IIIC2 4:1 IV:1
1A3 IA3 2:0 II:0 3:0 III:0 4:2 IV:2
1B IB 2:1 II:1 3:1 III:1 4:3 IV:3
1B1 IB1 2:2 II:2 3:2 III:2 4:4 IV:4
1B2 IB2 2:3 II:3 3:3 III:3 4:5 IV:5
1C IC 2:4 II:4 3:4 III:4 4:6 IV:6
1E IE 2:5 II:5 3:5 III:5 4:7 IV:7
1S IS 2:6 II:6 3:6 III:6 4:8 IV:8
1:0 I:0 2:7 II:7 3:7 III:7 4:9 IV:9
1:1 I:1 2:8 II:8 3:8 III:8 4:10 IV:10
1:2 I:2 2:9 II:9 3:9 III:9 4:11 IV:11
1:3 I:3 2:10 II:10 3:10 III:10 4:12 IV:12
1:4 I:4 2:11 II:11 3:11 III:11 4:13 IV:13
1:5 I:5 2:12 II:12 3:12 III:12 4:14 IV:14
1:6 I:6 2:13 II:13 3:13 III:13 4:15 IV:15
1:7 I:7 2:14 II:14 3:14 III:14 4:16 IV:16
1:8 I:8 2:15 II:15 3:15 III:15 4:17 IV:17
1:9 I:9 2:16 II:16 3:16 III:16 4:18 IV:18
1:10 I:10 2:17 II:17 3:17 III:17 4:19 IV:19
1:11 I:11 2:18 II:18 3:18 III:18 4:20 IV:20
1:12 I:12 2:19 II:19 3:19 III:19 4:21 IV:21
1:13 I:13 2:20 II:20 3:20 III:20 4:22 IV:22
1:14 I:14 2:21 II:21 3:21 III:21 4:23 IV:23
1:15 I:15 2:22 II:22 3:22 III:22 4:24 IV:24
1:16 I:16 2:23 II:23 3:23 III:23 4:25 IV:25
1:17 I:17 2:24 II:24 3:24 III:24 OccultCarcinoma Occult carcinoma
1:18 I:18 2:25 II:25 3:25 III:25 88 Not applicable
1:19 I:19 99 Unknown
1:20 I:20
1:21 I:21
1:22 I:22
1:23 I:23
1:24 I:24
1:25 I:25
Canadian Staging Data Elements for TNM Collection, 2018 Page 13 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: AJCC TNM Clinical T Suffix CCR Name: None – New Data Item Item Length: 1 NAACCR Item # 1031
Description: Detailed site-specific codes for the clinical T category suffix as defined by AJCC and recorded by the physician.
Code Definition
m Multiple synchronous tumors OR For thyroid differentiated and anaplastic only, Multifocal tumor
s For thyroid differentiated and anaplastic only, Solitary tumor
blank No information available; not recorded
Canadian Staging Data Elements for TNM Collection, 2018 Page 14 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: AJCC TNM Clinical N Suffix CCR Name: None – New Data Item Item Length: 2 NAACCR Item # 1034
Description: Detailed site-specific codes for the clinical N category suffix as defined by AJCC and recorded by the physician.
Code Definition
sn Sentinel node procedure without resection of nodal basin
f FNA or core needle biopsy without resection of nodal basin
blank No suffix needed or appropriate; not recorded
Canadian Staging Data Elements for TNM Collection, 2018 Page 15 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy T CCR Name: None – New Data Item Item Length: 15
Alphanumeric NAACCR Item # 1021
Description: Detailed site-specific codes for the post neoadjuvant therapy tumor (T) as defined by AJCC and recorded by the physician. Evaluates the primary tumor (T) and reflects the tumor size and/or extension of the tumor known following the completion of neoadjuvant therapy (satisfying the definition for that disease site) and planned post neoadjuvant therapy surgical resection.
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition
(blank) Not recorded ypT1b1 ypT1b1 ypT3 ypT3
ypTX ypTX ypT1b2 ypT1b2 ypT3a ypT3a
ypT0 ypT0 ypT1c ypT1c ypT3b ypT3b
ypTa ypTa ypT1c1 ypT1c1 ypT3c ypT3c
ypTis ypTis ypT1c2 ypT1c2 ypT3d ypT3d
ypTis(DCIS) ypTis(DCIS) ypT1c3 ypT1c3 ypT4 ypT4
ypTis(LAMN) ypTis(LAMN) ypT1d ypT1d ypT4a ypT4a
ypTis(Paget) ypTis(Paget) ypT2 ypT2 ypT4b ypT4b
ypT1 ypT1 ypT2a ypT2a ypT4c ypT4c
ypT1mi ypT1mi ypT2a1 ypT2a1 ypT4d ypT4d
ypT1a ypT1a ypT2a2 ypT2a2 ypT4e ypT4e
ypT1a1 ypT1a1 ypT2b ypT2b 88 Not applicable
ypT1a2 ypT1a2 ypT2c ypT2c
ypT1b ypT1b ypT2d ypT2d
Canadian Staging Data Elements for TNM Collection, 2018 Page 16 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy N CCR Name: None – New Data Item Item Length: 15 Alphanumeric NAACCR Item # 1022
Description: Detailed site-specific codes for the post neoadjuvant therapy nodes (N) as defined by AJCC and recorded by the physician. Identifies the absence or presence of regional lymph node (N) metastasis and describes the extent of lymph node metastasis of the tumor known known following the completion of neoadjuvant therapy (satisfying the definition for that disease site) and planned post neoadjuvant therapy surgical resection.
Based on AJCC 8th Edition TNM
Code Definition Code Definition
(blank) Not recorded ypN1c ypN1c
ypNX ypNX ypN2 ypN2
cN0 cN0 ypN2mi ypN2mi
ypN0 ypN0 ypN2a ypN2a
ypN0(i+) ypN0(i+) ypN2b ypN2b
ypN0(mol+) ypN0(mol+) ypN2c ypN2c
ypN0a ypN0a ypN3 ypN3
ypN1 ypN1 ypN3a ypN3a
ypN1mi ypN1mi ypN3b ypN3b
ypN1a ypN1a ypN3c ypN3c
ypN1a(sn) ypN1a(sn) 88 Not applicable
ypN1b ypN1b
Canadian Staging Data Elements for TNM Collection, 2018 Page 17 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy M CCR Name: None – New Data Item Item Length: 15
Alphanumeric NAACCR Item # 1023
Description: Detailed site-specific codes for the post neoadjuvant therapy category metastases (M) as defined by AJCC and recorded by the physician. M category for post neoadjuvant therapy staging remains the same as that assigned in the clinical stage before initiation of neoadjuvant therapy, cM or pM.
Code Definition Code Definition
(blank) Not recorded pM1 pM1
cM0 cM0 pM1a pM1a
cM0(i+) cM0(i+) pM1a(0) pM1a(0)
cM1 cM1 pM1a(1) pM1a(1)
cM1a cM1a pM1b pM1b
cM1a(0) cM1a(0) pM1b(0) pM1b(0)
cM1a(1) cM1a(1) pM1b(1) pM1b(1)
cM1b cM1b pM1c pM1c
cM1b(0) cM1b(0) pM1c(0) pM1c(0)
cM1b(1) cM1b(1) pM1c(1) pM1c(1)
cM1c cM1c pM1d pM1d
cM1c(0) cM1c(0) pM1d(0) pM1d(0)
cM1c(1) cM1c(1) pM1d(1) pM1d(1)
cM1d cM1d 88 Not applicable
cM1d(0) cM1d(0)
cM1d(1) cM1d(1)
Based on AJCC 8th Edition TNM
Canadian Staging Data Elements for TNM Collection, 2018 Page 18 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy Stage Group CCR Name: None – New Data Item Item Length: 15 NAACCR Item # 1024
Description: Detailed site-specific codes for the post neoadjuvant therapy stage group as defined by AJCC and recorded by the physician. Identifies the remaining anatomic extent of disease based on the T and N following the completion of neoadjuvant therapy (satisfying the definition for that disease site) and planned post neoadjuvant therapy surgical resection, and the M status defined during the diagnostic workup. (Table on next page)
Canadian Staging Data Elements for TNM Collection, 2018 Page 19 Revision Date: March 2018
Based on AJCC 8th Edition TNM
Code Definition Code Definition Code Definition Code Definition
(blank) Not recorded 2 II 3 III 4 IV
0 0 2A IIA 3A IIIA 4A IVA
0a 0a 2A1 IIA1 3A1 IIIA1 4A1 IVA1
0is 0is 2A2 IIA2 3A2 IIIA2 4A2 IVA2
1 I 2B IIB 3B IIIB 4B IVB
1A IA 2C IIC 3C IIIC 4C IVC
1A1 IA1 2E IIE 3C1 IIIC1 4:0 IV:0
1A2 IA2 2 bulky II bulky 3C2 IIIC2 4:1 IV:1
1A3 IA3 2:0 II:0 3D IIID 4:2 IV:2
1B IB 2:1 II:1 3:0 III:0 4:3 IV:3
1B1 IB1 2:2 II:2 3:1 III:1 4:4 IV:4
1B2 IB2 2:3 II:3 3:2 III:2 4:5 IV:5
1C IC 2:4 II:4 3:3 III:3 4:6 IV:6
1E IE 2:5 II:5 3:4 III:4 4:7 IV:7
1S IS 2:6 II:6 3:5 III:5 4:8 IV:8
1:0 I:0 2:7 II:7 3:6 III:6 4:9 IV:9
1:1 I:1 2:8 II:8 3:7 III:7 4:10 IV:10
1:2 I:2 2:9 II:9 3:8 III:8 4:11 IV:11
1:3 I:3 2:10 II:10 3:9 III:9 4:12 IV:12
1:4 I:4 2:11 II:11 3:10 III:10 4:13 IV:13
1:5 I:5 2:12 II:12 3:11 III:11 4:14 IV:14
1:6 I:6 2:13 II:13 3:12 III:12 4:15 IV:15
1:7 I:7 2:14 II:14 3:13 III:13 4:16 IV:16
1:8 I:8 2:15 II:15 3:14 III:14 4:17 IV:17
1:9 I:9 2:16 II:16 3:15 III:15 4:18 IV:18
1:10 I:10 2:17 II:17 3:16 III:16 4:19 IV:19
1:11 I:11 2:18 II:18 3:17 III:17 4:20 IV:20
1:12 I:12 2:19 II:19 3:18 III:18 4:21 IV:21
1:13 I:13 2:20 II:20 3:19 III:19 4:22 IV:22
1:14 I:14 2:21 II:21 3:20 III:20 4:23 IV:23
1:15 I:15 2:22 II:22 3:21 III:21 4:24 IV:24
1:16 I:16 2:23 II:23 3:22 III:22 4:25 IV:25
1:17 I:17 2:24 II:24 3:23 III:23 OccultCarcinoma Occult carcinoma
1:18 I:18 2:25 II:25 3:24 III:24 88 Not applicable
1:19 I:19 3:25 III:25 99 Unknown
1:20 I:20
1:21 I:21
1:22 I:22
1:23 I:23
1:24 I:24
1:25 I:25
Canadian Staging Data Elements for TNM Collection, 2018 Page 20 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy T Suffix CCR Name: None – New Data Item Item Length: 1 NAACCR Item # 1033
Description: Detailed site-specific codes for the post neoadjuvant therapy T category suffix as defined by AJCC and recorded by the physician.
Code Definition
m Multiple synchronous tumors OR For thyroid differentiated and anaplastic only, Multifocal tumor
s For thyroid differentiated and anaplastic only, Solitary tumor
blank No information available; not recorded
Canadian Staging Data Elements for TNM Collection, 2018 Page 21 Revision Date: March 2018
Canadian Staging Data Elements for TNM Collection, 2018
Date Element: TNM Post Therapy N Suffix CCR Name: None – New Data Item Item Length: 2 NAACCR Item # 1036
Description: Detailed site-specific codes for the post neoadjuvant therapy N category suffix as defined by AJCC and recorded by the physician.
Code Definition
sn Sentinel node procedure without resection of nodal basin
f FNA or core needle biopsy without resection of nodal basin
blank No suffix needed or appropriate; not recorded