Collaborative Stage

Note 1: Each stage should be classified as either A or B according to the absence or presence of defined constitutional symptoms, such as:
1. Fevers: Unexplained fever with temperature above 38 degrees C;
2. Night sweats: Drenching sweats that require change of bedclothes;
3. Weight loss: Unexplained weight loss of more than 10% of the usual body weight in the 6 months prior to diagnosis.
Note 2: Pruritus alone does not qualify for B classification, nor does alcohol intolerance, fatigue, or a short, febrile illness associated with suspected infections.
Note 3: Use code 000 if the History and Physical, progress notes, or consultations make no mention of B symptoms.

The A or B stage classification is appended to the stage Stage I-IV as shown in the AJCC TNM 6 Stage and AJCC TNM 6 Stage CSv1 tables.

Code	Description	Stage Classification
000	No B symptoms (asymptomatic)	A
010	Any B symptom(s): Night sweats Unexplained fever (above 38 degrees C) Unexplained weight loss (generally greater than 10% of body weight in the six months before admission) B symptoms, NOS	B
020	Pruritis (recurrent and unexplained)	A
030	020 + 010 Pruritis plus any B symptom(s)	B
988	Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 988 will result in an edit error.)	ERROR
999	Unknown or no information Not documented in patient record	BLANK

CS Site-Specific Factor 2
Systemic Symptoms at Diagnosis