I think we might have different definitions of codified. Most often laws are "codified" by the legislature and the executive. Many State constitutions allow for referendums whereby the voting public can codify a law.This refers to the long-standing for decade Supreme Court decision in Roe. In the Senate hearings each of the new Trump Supreme court nominees said as I recall that a long-standing ruling should not easily be overturned. But they did and in polls about 80% of the US wants to return to the 24 week standard of Roe.
In the U.S. Courts do not codify laws. They merely interpret the meaning of laws and how they are applied.
The Senate judicial hearings in the recent past are an entirely different matter. I believe when Democrats were vigorously trying to make Roe vs. Wade a litmus test for Supreme Court nominees, some of the nominees did not come out and declare their position one way of another.
There are many that don't think the Kavanaugh hearings were a fiasco and many who do. At their core, the hearings had something to do with abortion.
Caveat: People read explanations like this that they might not hear in the media. Depending on their position, they will interpret them to mean I am anti-abortion. I personally am in favor of some type of 15-20 week limitation.