The current head version doesn't send ADT^A31^ADT_A05 as required by the IHE TF: 3.10.4.1.2.1 MSH Segment The MSH segment shall be constructed as defined in ITI TF-2x: C.2.2, "Message Control". Field MSH-9 Message Type shall have all three components populated with a value. The first 1625 component shall have a value of ADT; the second component shall have the value of A31. The third component shall have a value of ADT_A05. This fails the NIST test