For cutaneous B-cell or T-cell lymphoma, this is a classification of the clinical morphology as determined by a clinician on the basis of the worst clinical area.

National codes:

A	Patch
B	Plaque
C	Papule
D	Nodule/tumour
E	Erythrodermic
F	Poikiloderma
G	Resolved/regressed

References:
National Cancer Data Set Version 2.1_ISB October 2002