Lets say about 50 days ago you had a cold and took 3 teaspoons of codeine to help with the illness and did a drug test about 10 days after that. (about 60 days)
Would that much be enough to fail a hair test or would it possibly come in under the confirmation level which I believe is 2000 nanagrams. Thanks.

Why would you risk your job, or probation for a little cough syrup that wasn't yours? If this were legit you wouldn't be freaking on this. Sober is sober. Not what you can get away with.