D9246 Dental Code: First 15 Minutes of Non-IV Sedation

What D9246 covers

D9246 reports the first 15-minute increment of moderate sedation, or any part of that block, where the sedative reached the patient parenterally by something other than an IV line. In most practices that means an intramuscular or intranasal dose; submucosal, subcutaneous, and intraosseous administration sit in the same group. Sublingual is the one route the sources argue over, and the question below works through why. D9246 is the anchor of the pair, and D9247 extends it one unit per block after the first.

Two things in the descriptor decide most claims built on it.

• The clock is anesthesia time. It runs from the point the doctor takes up continuous attendance with the monitoring protocol under way to the point the patient can be handed off to trained staff. It opens before the dose does, which is worth knowing on a code measured in minutes.
• Any part of the first block is the whole first unit. Eleven minutes of anesthesia time is one D9246 line. There is no partial unit and no second code until the clock passes 15 minutes.

Nitrous does not get its own line. When nitrous runs alongside the injected agent it is folded into the sedation procedure, and D9230 is now reserved for visits where nitrous was the only agent used.

Depth decides the family, route decides the pair

The 2026 descriptors are explicit that the level of anesthesia is established by what the provider documented about the patient’s central nervous system response. Route appears in the nomenclature because CDT codes have carried routes for over twenty years and the procedure is defined by a combination of level, route, and time, but the route does not make a case moderate. Read the chart in that order.

First, is the documented depth moderate? Moderate sedation means the patient responds purposefully to verbal commands, alone or with light tactile stimulation, keeps a patent airway without intervention, and ventilates adequately. If the note describes a patient who could not be roused that way, the case is deep sedation or general anesthesia and moves to D9222 and D9223, or to D9224 and D9225 when the patient reaches general anesthesia with an advanced airway in use throughout. Both of those pairs are new or revised for 2026, and the ADA allows one case to split across D9222/D9223 and D9224/D9225 by increment if the patient transitions.

Then, how was the drug delivered? Route sorts the moderate family into three buckets. A swallowed or rectal dose is enteral and lands on D9244 when a single drug was given at or under the FDA maximum recommended dose, or on D9245 when the protocol went past that. An intravenous dose lands on D9239 and D9243. Everything else parenteral lands here. The full route table, including the deep sedation and general anesthesia codes, is laid out on the D9247 page.

The enteral pair is the odd one out and it is worth naming why. D9244 and D9245 split on drug protocol rather than on elapsed time, so neither is billed by the clock. The moment the route is parenteral, the coding becomes a timekeeping exercise, and that is the shift a practice moving off D9248 has to absorb.

The D9248 habit is what makes this code get skipped

D9248 was one flat line covering every non-IV sedation case, minimal or moderate, regardless of how long the appointment ran. It was deleted effective January 1, 2026 and four codes took its place. For offices that billed sedation that way for years, the muscle memory is the problem: there was never a first increment to report, so nobody reports one now.

That shows up two ways on the claim, and both cost money.

1. A D9247 line with no D9246 behind it. The add-on has no first unit to attach to and should be expected to reject or deny as an orphan on most plans. At least that one announces itself.
2. A single D9246 line on a case that ran 50 minutes. This is the quieter loss, because the claim pays. Nothing rejects, nobody calls, and three increments of legitimate time never get billed at all. A denial gets worked; a short-billed claim just closes.

Both come from the same root, which is a workflow that treats sedation as one procedure rather than as a clock. The office that fixes the anesthesia record so start and stop times reach the biller fixes both at once.

Where the carriers land on the first increment

Coverage on this pair is uneven and not intuitive, and because the two codes adjudicate together the D9247 page carries the wider carrier picture. Three facts bear on the first increment directly.

Humana treats it as IV sedation. Its published 2026 code change guidance maps D9246 onto its existing D9239 coverage and D9247 onto its D9243 coverage, so the injected route is adjudicated against the plan’s IV sedation benefit. The same document treats the enteral codes D9244 and D9245 as not covered unless a state mandates it, which means the route the drug took can decide whether the sedation has any benefit behind it at all.

UnitedHealthcare keeps the routes apart. Its General Anesthesia and Conscious Sedation Services policy DCP016.18, effective January 1, 2026, lists all four new codes as applicable but holds non-intravenous sedation to a shorter medical-necessity list: patients with physical, cognitive, or developmental disabilities, and mild to moderate apprehension and anxiety. Worth noticing in the same policy, it defines non-intravenous sedation as medications delivered by oral, intranasal, or transmucosal routes, a broader bucket than the CDT route split. The carrier’s category and the code’s category are not the same shape, so a policy that reads as though it covers your case does not settle which code reports it.

Delta Dental sits at the other end. Its CDT 2026 provider summary lists D9246 and D9247 as not a benefit of most Delta Dental plans and puts the fee on the patient, so the same case that adjudicates against an IV sedation benefit under Humana can be entirely self-pay under a Delta plan. Read the specific plan rather than the carrier’s reputation.

Two fields the anesthesia record has to carry

The anesthesia record carries this code, and the D9247 page sets out the full field list a carrier reads on audit. Two of them decide whether the first increment survives.

• The route, recorded dose by dose along with the drug and the amount. Route is the only thing separating D9246 from D9239 and from the enteral codes, so a note saying sedation was given has not recorded a route.
• The anesthetic effect the provider observed. This is the single field the descriptor rests on and the one that establishes moderate rather than minimal or deep. A chart silent on responsiveness leaves no code in the family defensible on review.

A short narrative tying the sedation to the procedure or to a documented patient condition heads off the routine not-medically-necessary denial. Something like intranasal midazolam for a patient with a developmental disability, moderate sedation documented, 14 minutes of continuous attendance for a surgical extraction answers more than a bare code does. Most states also require a permit for moderate sedation and the requirements vary by board, so confirm the provider’s permit covers both the level and the route being billed.

PMS setup that protects the first increment

Every system names these menus differently, whether you are in Open Dental, Dentrix, Eaglesoft, Curve, or Carestream, but two rules do the work on the base code.

1. Make D9246 the required opening line on any non-IV parenteral case. If your system supports linked or dependent procedures, set D9247 so it cannot post without D9246 on the same date. That one rule kills the orphan-line rejection before it reaches the clearinghouse.
2. Name the codes in the pick list by depth and route. An entry reading first 15 min, IM or intranasal can be selected without thinking. Four entries that all begin with the word sedation cannot, and D9248 sitting among them will keep getting picked out of habit until it is deactivated.

The rest of the setup, including the quantity trap on the D9247 line and keeping a running list of which carriers have loaded the 2026 sedation codes, is on the D9247 page.

One related line is worth checking on the same case. D9219 covers the doctor’s pre-administration evaluation of the patient for sedation or anesthesia, and the ADA treats it as separately reportable on the same date as the sedation itself. The ADA dental claim form guide covers how the units and the remarks field get filled in.