Many DSM-5 diagnosis come into effect with the ICD-11, ICD-10 doesn't have a good deal of them, and that rollout is still fresh & ongoing.

It is kinda spooky, though, to have freshly minted doctors from a few years back whose school-knowledge will forever be "outdated and archaic" based on standards published before they were in school.

Some good advice I got: treat this as a generation shift, find younger and newer doctors who are familiar with the "modern" standards.