The site(s) of disease identified outside the bone marrow, including the present of blasts in the Cerebrospinal fluid (CSF).
National Codes:
| T | Testes (Retired 01 April 2017) |
| C | CNS (Central Nervous System) (Retired 01 April 2017) |
| O | Other (Retired 01 April 2017) |
| 1 | CNS1 (Central Nervous System) (less than 5 WBC (White blood cells) in the CSF (Cerebrospinal fluid) without blasts |
| 2 | CNS2 (Central Nervous System) (less than 5 (White blood cells) in the CSF (Cerebrospinal fluid) with blasts) |
| 3 | CNS3 (Central Nervous System) (greater than or equal to 5 (White blood cells) in the CSF (Cerebrospinal fluid) with blasts) |
| 4 | Testes |
| 9 | Other (not listed) |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| plural | EXTRAMEDULLARY DISEASE SITES |
