Alternate Name	Item#	Length	Source of Standard	Column #
	470	1	NAACCR	560-560

Description
Code that best describes how morphology is currently coded. If converted, this field shows the system it is converted to.

Codes

1	ICD-O, First Edition
2	ICD-O, 1986 Field Trial
3	ICD-O, 1988 Field Trial
4	ICD-O, Second Edition
5	ICD-O, Second Edition, plus REAL lymphoma codes effective 1/1/95
6	ICD-O, Second Edition, plus FAB codes effective 1/1/98
7	ICD-O, Third Edition
8	ICD-O, Third Edition, plus 2008 WHO hematopoietic/lymphoid new terms effective 1/1/2010
9	Other