Derived Rai Stage
Notes
This data item stores the Derived Rai stage value derived from the values coded in the following SSDIs.
* Lymphocytosis (NAACCR #3885)
* Adenopathy (NAACCR #3804)
* Organomegaly (NAACCR #3907)
* Anemia (NAACCR #3811)
* Thrombocytopenia (NAACCR #3933)
The Rai stage is only applicable for those cases where the primary site is bone marrow (C421).
* For cases with a primary site other than bone marrow (C421), the derived Rai stage will be 8 and all the SSDIs will be coded to 5.
Derivation will be run on all cases diagnosed 1/1/2018 and forward.
Metadata
SSDI
| Rai Code |
Rai Stage |
Description |
| 0 |
0 |
Lymphocytosis |
| 1 |
I |
Lymphocytosis and Adenopathy |
| 2 |
II |
Lymphocytosis and Organomegaly
(Adenopathy is any value other than 5) |
| 3 |
III |
Lymphocytosis and Anemia
(Adenopathy and Organomegaly are any value other than 5) |
| 4 |
IV |
Lymphocytosis and Thrombocytopenia
(Adenopathy, Organomegaly and Anemia are any value other than 5) |
| 8 |
N/A |
Does not apply, Site is not C421
(All 5 SSDIs should be set to 5) |
| 9 |
9 |
Unknown
(All 5 SSDIs are 9 or blank; at least one is set to 9 OR
Lymphocytosis is 0,7,9 OR
Lymphocytosis is blank and one of the other SSDIs is a value other than 5 or 9) |
| <BLANK> |
|
Not Calculated (DCO) |
