I too miss the ability to change the dx text while leaving the code untouched such that I could find the dx by MY Description. That "feature", i heard, was blamed on some regulatory issue, but don't take that as gospel either.
You can change the diagnosis test in the Assessment text box, just leave the # and : and parentheses alone. That new descriptive text will stay in your note and appear on your orders, and the code behaves correctly for billing.
Of course if you use ctrl-N to start a new note, your changes will vanish from your current note. (can be copied back from past visits if needed)
Do the right thing. The rest doesn’t matter. Cold or warm. Tired or well-rested. Despised or honored. – --Marcus Aurelius --