Add new algorithm for SEER Site Recode 2023

[depryf]

Notifying @howew and @flynngr

https://seer.cancer.gov/siterecode/icdo3_2023/ https://seer.cancer.gov/siterecode/icdo3_2023_expanded/

Algorithm ID = seer-site-recode-2023 Algorithm Name = SEER Site Recode ICD-O-3 Algorithm Version = 2023 Revision

Input variables:

• primary site
• histology ICD-O-3
• behavior ICD-O-3

Output variables:

name = SEER Site Recode ICD-O-3 2023 Revision id = seerSiteRecode2023 number = 9412 length = 3 type = digit

name = SEER Site Recode ICD-O-3 2023 Revision Expanded id = seerSiteRecode2023Expanded number = 9413 length = 3 type = digit

There is no "unknown" value (other than blank), and from what I see the algorithm can compute blank values (there isn't a catch-all condition at the end).

[howew]

Should we create one? What does the 2008 WHO version do?

[depryf]

No, I don't think we should (or that we can).

The 2008 version has an explicit catch-everything-else mapping at the end of their table (for code 99999)

https://seer.cancer.gov/siterecode/icdo3_dwhoheme/index.html

These new tables just don't have that.

If you want to petition SEER to change the tables, feel free. But I am staying out of it :-)