D9975 is the CDT code for take-home whitening with custom trays and dispensed bleaching gel, reported once per arch.
- When to use: The patient takes custom trays and gel home to bleach an arch, and the code posts on the dispensing date, not the impression date.
- When not to use: Chairside whitening is D9972, one discolored tooth is D9973 or D9974, and refill gel sold later is a retail sale, not D9975.
- Billing note: Nearly every plan excludes take-home whitening as cosmetic, so collect at dispensing and never bill trays or gel as separate lines.
What D9975 covers
D9975 reports the complete take-home whitening package for one arch: the impression or digital scan, the custom-fabricated trays, and the professional bleaching materials dispensed for home use. It is the at-home counterpart to D9972, which reports whitening performed in the chair.
One arch, one fee, with everything inside it:
- Tray fabrication, whether lab-made or produced in office.
- The starting supply of bleaching gel.
- Delivery, fit check, and home-use instructions.
Both arches are D9975 x2. The code does not cover chairside bleaching sessions (D9972), whitening a single discolored tooth (D9973 externally, D9974 internally), over-the-counter strips or boil-and-bite trays sold without custom fabrication, or trays used to carry something other than a whitening agent, such as prescription fluoride, which belongs to a different code family.
The two miscodes that follow this procedure around
Posting D9972 for a tray case. The codes are three numbers apart and both describe external bleaching per arch, so a schedule that just says “whitening” gets posted to whichever code the front desk saw last. The test is where the bleaching happens: if staff apply and activate the agent in the operatory, it is D9972; if the patient takes trays home, it is D9975. On split protocols like KöR, the at-home tray phase is D9975 and the single in-office boost visit is D9972, so a full case legitimately shows both codes.
Unbundling the kit. One arch of take-home whitening is one D9975 line. A ledger showing D9975 plus a “custom tray” charge plus a “whitening gel” line bills the tray and the gel twice, because the code already includes both. If your D9975 fee doesn’t cover the lab cost of the trays, raise the fee rather than adding line items.
Cosmetic means patient-pay, so run it that way
Nearly every dental plan excludes bleaching as cosmetic, and an elective arch of take-home whitening has none of the trauma-exception argument available for single-tooth bleaching. In practice:
- Present the fee before the impression: D9975 per arch, times two for both arches, with a total the patient signs off on.
- Collect at the dispensing visit. There is no insurance portion to wait for.
- Skip predetermination and narratives. A categorical exclusion has nothing to authorize.
- Decide as an office whether to submit the claim anyway. A denial EOB can support the patient’s FSA/HSA paperwork, but it spends a claim cycle on a known outcome. Either policy is defensible if the patient understands the fee is theirs.
FSA and HSA administrators split on whitening: some refuse it as cosmetic, some accept it. Give the patient a clean superbill with the code, a plain-language description, arches, date of dispensing, provider and NPI, and fee per arch.
Refills, remakes, and lost trays
These follow-on events have no dedicated codes, so set office policy before they happen:
- Refill gel is a product sale, not a claim. No CDT code exists for dispensed bleaching materials alone, and re-billing D9975 misstates what happened because no trays were fabricated.
- Lost or damaged trays that need refabrication are a new fabrication, so a second D9975 is defensible. Insurance is irrelevant either way; your fee schedule and patient communication should anticipate the scenario.
- Shade dissatisfaction is chair time, not a new code. Handle it under your redo policy.
What to get right in your PMS
- Two arches, two lines. A single D9975 for an upper-and-lower kit undercharges the case and breaks the per-arch logic if anyone audits the ledger against the chart.
- Post on the dispensing date. The impression starts the lab work; the service is complete when the patient leaves with the trays and materials.
- Keep a real fee on the code. Practices that sell whitening at a package price sometimes leave D9975 at $0, which leaves the patient without a usable superbill for reimbursement.
FAQs
- Does D9975 include the whitening gel, or is that billed separately?
- Included. The code covers the materials dispensed for home use and the fabrication of the custom trays in one per-arch fee. Do not add a separate line for gel syringes dispensed at the delivery visit. Refill gel the patient buys later is handled separately; see below.
- How do I bill refill gel syringes the patient buys months later?
- As a retail sale outside the claim system. There is no CDT code for refill bleaching gel on its own, so most offices sell refills the same way they sell electric toothbrush heads. Do not re-bill D9975 for a refill; the code includes tray fabrication, which did not happen again.
- The patient got in-office whitening and take-home trays in the same treatment plan. One code or two?
- Two. The chairside session is D9972 per arch and the tray kit is D9975 per arch, and both can appear on the same claim when both were provided. Combination systems work the same way: on a KöR-style protocol, the multi-week at-home tray phase is D9975 and only the single in-office boost visit is D9972.
- Will dental insurance cover D9975?
- Almost never. Bleaching falls under the cosmetic exclusion on nearly all dental plans, and take-home whitening has no trauma-exception argument the way single-tooth bleaching sometimes does. Collect the fee at dispensing. For FSA or HSA reimbursement, give the patient a superbill with the code, arches treated, and fee; whether the administrator accepts whitening varies by plan.
- Is D9975 billed when the trays are made or when they are delivered?
- When they are delivered. Post it on the date the trays and materials are dispensed, not the impression date. If the patient never returns to pick up the trays, no dispensing happened: that is a fee-policy problem for your office, but not a billable D9975.
Related codes
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CDT codes are maintained by the American Dental Association. This page is an editorial billing guide, not the official ADA code descriptor. Verify current coverage policies with each carrier before submitting claims.