The Ann Arbor Staging System stage based on the location and extent of the detected disease for a PATIENT during a Cancer Care Spell.
National Codes:
| CODE | STAGE | DESCRIPTION |
| 1 | l | One region of lymph nodes, or spleen or thymus or Waldeyer's ring enlarged |
| 2 | ll | 2 regions of lymph nodes enlarged, on same side of diaphragm |
| 3 | lll | lymph nodes enlarged on both sides of diaphragm |
| 4 | lV | disease outside lymph nodes e.g. liver, bone marrow excluding 'E' |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| plural | ANN ARBOR STAGES |