Key-value codes for just the first two digits of the ICDO-3 code. This gives broader grouping. Based on the table of contents from a PDF.
See also
Other key_value_data:
atc,
distrikt,
figo,
forsamling,
hemort,
hsn,
icd10cm,
icd10se,
icd7,
icd7_grov,
icd9,
icd9cmd,
icdo,
icdo3,
klinik,
kommun,
kon,
kva,
lan,
m_rtr,
n_rtr,
pad,
patologiavdelning,
region,
rockan,
sida,
sjukhus,
sjukhus_inca,
sjukhus_par,
sjukvardsomrade,
snomed,
snomed3,
t_rtr,
tnmgrund