Hi and welcome.
Sorry to hear your husband has had pancreatitis and is now showing signs of diabetes. There is no specific test for Type 3c diabetes however, with a history of pancreatitis and the consultant suggesting that diabetes may result, then it would make absolute sense to diagnose him as Type 3c rather than Type 2, however the nurse will not be sufficiently knowledgeable to do that. The HbA1c test gives you a diagnosis of diabetes if you have a reading greater than 47. Some GPs and nurses may schedule a second test shortly afterwards if the result is only just over the diagnostic threshold to give the patient an opportunity to reduce it or to confirm the diagnosis, particularly if there are no symptoms.... which you would not generally expect at that sort of level.
The treatment for Type 3c diabetes varies according to how much insulin the pancreas is still managing to produce and since your husband's HbA1c is only just over the threshold, then they would be very unlikely to prescribe insulin at this time and perhaps no medication at all, because some dietary changes and perhaps increasing activity levels if he is able may be all that is needed to push that HbA1c back down. The important thing is that they have tested him for diabetes and things are not too bad at the moment.
If it gives you some perspective, my HbA1c was 114 at diagnosis and 6 weeks later it had gone up to 116 despite cutting all sweet stuff, plus all bread, pasta, rice, potatoes, breakfast cereals, anything containing flour and any other carb rich food from my menu, so I was started on insulin at that point. I was also on Type 2 medication at that time of max dose Metformin and Gliclazide. So there is some way to go before your husband's levels get anywhere near that bad and hopefully at this stage, some dietary changes will improve his results, for the time being. If he doesn't make dietary changes, then his pancreas will come under increasing pressure and probably fail quicker, so he will need insulin sooner, but will probably have to go through the plethora of Type 2 medication before they eventually prescribe insulin, because it is a kind of last resort and whilst it works well, it is a very powerful medication and it is quite complicated to use and very easy to overdose or underdose with. It isn't like normal medication where you take the stated dose every day and can then forget about it. So if your husband doesn't need it yet and at that level I would say he doesn't, then a few dietary changes and perhaps a bit more daily exercise or activity may well enable his poorly pancreas to limp along for a good few more years without medication.
Does he need Creon yet to help with digestion?