Codes and treatment plans · 2 of 6
Where a procedure goes, and why it changes the code
Which tooth, which surface, which quadrant. How Mesio decides, why the answer can change the code itself, and why it sometimes refuses to decide at all.
A code without a site is not a claim. Scaling and root planing has to land in a quadrant, a composite has to land on surfaces. So after Mesio picks a code it has to work out where the work goes, and the sources for that answer are not equally trustworthy.
The order of trust
- What you saidYou named a tooth or a quadrant. Full stop.Dictated
- Your own findingsYou described caries on that tooth a minute ago.Finding
- How far you said it goesGeneralized, full mouth, quadrant by quadrant.Extent
- The perio chartOnly when you named nothing and described no extent.Chart
- BlankLeft for you to place.Yours
Why your words beat your own chart
This ordering was settled by a real case. A chart showed deep pockets in every quadrant but bleeding on only two teeth. Reading the chart alone produced a single quadrant of therapy for a dentist who had said, out loud, quadrant by quadrant.
The chart is a measurement. Your sentence is a clinical decision, made with the patient in front of you and everything the chart does not record. When they disagree, the decision wins.
A chart that supports nothing is also evidence. If you call for scaling and root planing and the chart shows nothing that qualifies, Mesio does not quietly place it somewhere plausible. It leaves the site blank for a human, because that disagreement is worth seeing.
The site can change the code
Some codes are really one procedure described at different sizes, and the site is what selects between them. Once the surfaces are known, a composite is coded by how many there are and whether the tooth is anterior or posterior. Endodontics is coded by tooth position. A denture is coded by arch.
So the code can legitimately change after the site resolves. When that happens Mesio says so in plain words, naming the original code and what changed it, rather than presenting the new code as though you had dictated it.
Several teeth, one quadrant
Calling out scaling on three teeth in the same quadrant is not three procedures. It is one, coded by how many teeth in that quadrant are involved, with the teeth themselves carried on the line because the claim form wants them.
Where the chart gets a say without overruling you
When you place quadrant therapy by extent and the chart shows fewer involved teeth than the code usually implies, Mesio raises it as something a payer may question, and suggests confirming the quadrant or recoding.
It says so. It does not recode. The difference between those two is the whole design.
Editing beats everything
Change a pill's site or its code and it stops being something Mesio derived. It is marked as yours, it survives every later regeneration of the note, and nothing Mesio inferred reads as if you had said it.