AJCC Stage 3rd Edition in SEER Data

AJCC stage 3rd edition (1988-2003) Field Description: Derived by algorithm from extent of disease (EOD). Not available for all years or for all sites.

SEER modified AJCC stage 3rd (1988-2003) Field Description: Derived by algorithm from extent of disease (EOD). Not available for all years or for all sites. The modified version stages cases that would be unstaged under strict AJCC staging rules. For example, it assumes NX is N0.

Code Stage
0 In situ
10 I
11 IA
12 IB
13 IC
18 In Situ and I combined for bladder only
19 I, NOS
20 II
21 IIA
22 IIB
23 IIC
29 II, NOS
30 III
31 IIIA
32 IIIB
33 IIIC
39 III, NOS
40 IV
41 IVA
42 IVB
49 IV, NOS
88 Recode scheme not yet available
90 Unstaged
98 Not applicable
99 Error condition

Coded only for 1988-2003 cases with the following ICD-O- codes:

Cancer Site ICD-O Code
Colon C180:C189
Rectum C199,C209
Lung and Bronchus C340:C349
Breast C500:C509
Cervix C530:C539
Corpus Uteri C559,C530:C539
Ovary C569
Vagina C529
Vulva C519
Other Female Genital Organs C510:C512,C589
Prostate C619
Bladder C670:C679

For staging criteria, refer to http://seer.cancer.gov/manuals/historic/comp_stage1.1.pdf