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•  LOINC modeling team to take the 814 disjunctive concepts and make them primitive in the initial release, then revise them as necessary based on further modeling discussions.

Editorial Guidance on Numeric Ranges in the FSN

GRE said they had had pushback in the past of including em dash and dashes, particularly when copy/pasting from Word. They created coding problems, and they had had to roll back releases because of the problem.

JCA asked if the to...from would require new attributes to make them work. GRE replied that representing them as 2 to 2.5 mg is clearer. Part of the problem, he said, was in searching. 2mg was harder to find than 2 mg, so it was better to have a space between the number and the unit.

JCA said that sounded fairly straight-forward to automate so long as the Members were alerted that the descriptions would be inactivated and replaced. 

There was a question about Keith Campbell's (KCA's) discussion point on bracketed ranges, but JCA was not able to find it for the discussion.

TMO asked if there needed to be a number with each unit in the range. JCO said he felt like it should be yes, and yet from a readability perspective it was not necessary, unless perhaps people were searching and expecting the unit within one space.

PAM asked if it should be 2 or 2.0. TMO said the general consensus was no trailing 0. JCA said 0 in that case was not trailing, it was significant. TMO said that as a pharmacist she would never put it on there because it was easy to miss the decimal. PAM pointed out that it had meaning because 2.0 could mean 2.1 but it would not mean 2.9.

GRE said he thought it had to be both unambiguous and human readable.

BGO said he agreed with GRE's suggestion of 2 to 2.5 kg. JCA asked if a unit was needed after the first 2. BGO said he did not see the benefit of that. JCA pointed out that if you were searching for 2 kg, with the unit adjacent to your number, you would not find it.

The group agreed that TMO, with help from BGO and perhaps others, would come up with some more examples. PAS raised the issue of whether there were ranges that combined different units and JCA replied that they would have to look at the examples.

•  TMO to collect some more examples of numeric ranges in FSNs for further discussion.

Addition of diagnostic imaging concepts with multiple body sites

JCA showed a discussion on the topic from Monica Harry (see Should we continue to add diagnostic imaging of multiple body sites)

BGO wondered if the examples had come from CMT. JCA said on a CMT call, they had discovered that they were primarily created as convenience ordering mechanisms as opposed to distinct and unique concepts, but verification would be needed.

Mary Gerard (MGE) said she did not think that the examples came from CMT. She said KP had sent some examples of the same modality on adjacent body parts and she had been told that they could model on that. 

GRE said the point was whether they were part of the same procedure and if there was coherence in putting them together. He was reluctant to add all possible combinations. There should be some kind of line about when they can be part of the same idea so that you are not trying to express 3 different ideas in the same sentence.

JCA said the discussion was reminiscent of panels in the laboratory space. For example, if you have a number of things you want run on the same patient, you create a panel of things that needed to be done and they are performed in separate procedures in the lab. He agreed with GRE what you did not want to open the door without some guidelines to large and complex sets of combined orders in the diagnostic imaging space, but what was the reasonable line to draw in the sand