Orthodontic codes, and posting a contract rather than a procedure

Comprehensive orthodontics is billed as a contract. There is a total case fee, a portion recognised when the appliances go on, and the remainder paid across the active treatment period. The plan pays to its own schedule, which will not match the practice's patient payment plan, and reconciling the two is where orthodontic accounts receivable goes wrong.

The codes, and the one that is not comprehensive treatment

• D8080 is comprehensive orthodontic treatment of the adolescent dentition and D8090 the adult equivalent. Transitional and primary dentition phases have their own codes.
• A pre-orthodontic examination or visit has its own code and is billed before the case starts. The periodic treatment visit code covers the adjustment appointments inside the contract.
• Retention — removing the appliances and constructing and placing retainers — has its own code, and adjustment of a removable retainer another. Whether retention is inside the comprehensive fee or billed separately is a plan-by-plan answer, so verify it rather than assume.
• Removable and fixed appliance therapy codes cover habit appliances, such as those addressing thumb sucking. They are not a cheaper way to bill comprehensive treatment, and they are not space maintainers, which live in the preventive series entirely.

Verify before banding, because afterwards nothing can be changed

Orthodontic benefits do not behave like the rest of the policy, and the four questions below are not answered by a standard benefit breakdown.

1. Is there a separate lifetime orthodontic maximum? There usually is, it is separate from the annual maximum, and it is the real ceiling on the case.
2. Is there an age limit? Many plans stop at nineteen, and some at a lower age, which changes whether an adult case is a benefit at all.
3. Is there a waiting period? Orthodontic waiting periods of twelve months are common and are not waived by prior coverage elsewhere unless the contract says so.
4. Is treatment in progress excluded? Most plans will not pick up a case that was banded before the coverage began. This is the question that decides every transfer case.

All four have to be answered before appliances go on, because the case fee is agreed with the family at that point and cannot be revisited afterwards without damaging the relationship.

Banding, instalments, and the reconciliation nobody enjoys

The usual structure is an initial payment recognised at banding — frequently a fifth to a third of the case fee — with the balance paid across the estimated treatment months. Plans differ on almost every detail of how that is submitted.

• Some pay monthly, some quarterly, some issue the lifetime maximum in a small number of instalments regardless of treatment length.
• Some want each instalment claimed with the date of the visit; others want the contract anniversary date. Submitting on the wrong basis produces instalments that are paid out of order or rejected as duplicates.
• Where treatment finishes early, remaining instalments stop. Where it runs long, they do not usually extend. The plan funds the contract, not the chair time.
• The patient's own payment plan should be set against the practice fee, never against the expected insurance instalments, because any change in coverage mid-case shifts the balance to the family and the agreement needs to have anticipated that.

Transfer cases

A patient arriving mid-treatment is the hardest orthodontic claim to get paid, and the difficulty is documentation rather than coverage.

1. Record the original banding date and the number of months of active treatment already completed. The receiving practice bills for the remaining months, not the whole case.
2. Obtain the previous practice's records where possible, including what the prior plan paid, because the lifetime maximum is consumed by payments rather than by months.
3. Expect the treatment-in-progress exclusion to apply where the case was banded before the current coverage began. Where it does, the family is self-paying for the remainder and should be told in writing at the consultation.
4. Where two plans are involved, establish early whether either coordinates orthodontic benefits at all. A number of plans exclude orthodontics from coordination entirely, which is not the same as denying the claim and is frequently mistaken for it.

Retention, and the claim that is forgotten

Retention is the last event in the contract and the one most often left unbilled, because by then the case feels finished and the account looks settled. Where retention is not bundled into the comprehensive fee, it is a real claim with a real fee, and a practice that completes several hundred cases a year loses a meaningful figure to the assumption that it was included.

Replacement retainers after the contract ends are a separate matter again, are rarely covered, and should be quoted to the family as a private fee rather than submitted hopefully.