I am currently in the file build phase of LIS conversion from Cerner Classic to SoftBank. I am curious to know how other facilities report mixed field in their ABORH typings. Currently we footnote our findings for results of the ABO, but result 2M (2+mf), 3M (3+mf), etc for our D typings, which does not allow the computer to automatically interpret the blood type. The tech must manually type it in. I was told by another tech that this is a requirement- that mixed field with anti-D must not allow an automatic interpretation. The tech must investigate and manually interpret the type. Can anyone verify this or explain the purpose? It seems to me just as likely an error will occur interpreting the blood type manually than letting a mixed field Rh type interpret automatically. We would still require investigation.