Table 3.

Most Common ICD-9 Diagnosis Codes

Rank	ICD-9 Code	Description	% of Patients with the ICD-9 Code		P-value
			Group I (Repletion)	Group II (Control)
1	272	Disorders of lipoid metabolism	56	49.1	<0.0001
2	401	Essential hypertension	37.9	33.5	<0.0001
3	250	Diabetes mellitus	25.8	25.9	0.48
4	780	General symptoms	12.6	11.3	0.04
5	V70	General medical examination	11.6	10.7	0.11
6	244	Acquired hypothyroidism	11.4	10.1	0.04
7	268	Vitamin D deficiency	9.7	9.5	0.42
8	V58	Other and unspecified aftercare	6.8	5.9	0.05
9	790	Nonspecific findings on examination of blood	5.9	6	0.48
10	733	Other disorders of bone and cartilage	5	4.3	0.07