Table 1. UMLS codes and its medical classes.

No	UMLS Code	Examination	Diagnosis	Procedure
1	Clinical Drug	0	0	1
2	Finding	1	0	0
3	Laboratory	0	0	1
4	Test Result	0	0	1
5	Sign or Symptom	1	0	0
6	Virus	0	1	0
7	Disease	0	1	0
8	Syndrome	0	1	0
9	Vitamin	0	0	1
10	Organism Function	1	1	0
11	Neoplastic	0	0	1
12	Process	0	0	1
13	Mental Dysfunction	0	1	0
14	Behavioral Dysfunction	0	1	0
15	Mental Process	0	0	1
16	Hormone	0	0	1