When editing is it appropriate to rewrite "The codes with the problem ..." to "The code with the problem ..."?
In other words, is the term "code" a mass noun when used to describe text in a programming language.
In linguistics, a mass noun (also uncountable noun or non-count noun) is a noun that refers to some entity as an undifferentiated unit rather than as something with discrete subsets.
In English (and in many other languages), there is a tendency for nouns referring to liquids (water, juice), powders (sugar, sand), or substances (metal, wood) to be used in mass syntax, and for nouns referring to objects or people to be count nouns.
Consider, for example cutlery: If one collection of cutlery is combined with another, we still have "cutlery." Similarly, if water is added to water, we still have "water." But if a chair is added to another, we don't have "a chair," but rather two chairs. Thus the nouns "cutlery" and "water" have cumulative reference, while the expression "a chair" does not.