Iowa Code § 622.52
Sections 622.53 through 622.63, are not a limitation of the Iowa rules of evidence.
[C51, §2437; R60, §4057; C73, §3712; C97, §4644; C24, 27, 31, 35, 39, §11305; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §622.52] 83 Acts, ch 37, §3