An item number identifies the procedure, not the price. That is the first thing to understand about dental item numbers, and it clears up most of the confusion when an itemised account arrives with five or six codes on it. The number tells you and your health fund exactly which procedure was carried out. It says nothing about what that procedure should cost, because every practice sets its own fees independently. Read the codes as a precise description of what was done, then use them to check what your fund will pay you back.
Key takeaways
- An item number describes a procedure. It does not set, suggest or contain a fee.
- The coding system is the Australian Schedule of Dental Services and Glossary, published and maintained by the Australian Dental Association. The current edition is the 13th Edition, in effect from 1 July 2022.
- Most items are three digits, with some newer four digit items, and the leading digit groups them by type of treatment.
- One appointment normally produces several item numbers, because each distinct procedure is coded and rebated separately.
- Australian accounts use FDI two digit tooth notation: the first digit is the quadrant, the second is the position counting from the midline.
- The Australian Dental Association's Policy Statement 5.16 says you should be given the relevant item numbers so you can confirm your health fund benefit or government rebate.
Where dental item numbers come from
Dental item numbers come from the Australian Schedule of Dental Services and Glossary, published and maintained by the Australian Dental Association, which describes it as the definitive coding system of dental items and clinical procedures in Australia. The current edition is the 13th Edition, in effect from 1 July 2022.
Two things follow from that. The first is that the Schedule is an industry standard rather than a government price list. Item numbers are not set or regulated by government, and the Schedule does not fix what anything costs. The second is that each practice sets its own fees, and each health fund maps the same item numbers to its own benefit schedule in its own way. The code is a shared language. The figures on either side of it are not shared at all.
Why a common code matters
Without a shared code, a fund would have to interpret a written description for every claim lodged in the country. The Schedule gives each procedure a number and a written definition, so a claim for a periodic examination means the same thing whether the appointment happened in Melrose Park or Mackay. That is also why your fund asks for item numbers, not a description, when you ring to check a benefit before treatment.
How the numbering pattern works
Item numbers are grouped by type of treatment, and the leading digit tells you roughly which area of dentistry you are looking at. The Schedule's own text sits behind member access, so what follows is the general pattern rather than a set of verbatim category boundaries. The individual item numbers listed here are widely used and stable. The exact upper and lower limit of each range is the part not worth quoting with confidence.
- 000s, diagnostic. 011 comprehensive oral examination, 012 periodic oral examination, 022 intraoral radiograph, 037 panoramic radiograph, often called an OPG.
- 100s, preventive. 114 removal of calculus, 121 topical application of a remineralising agent such as fluoride, 161 fissure sealing.
- 200s, periodontics. 213 treatment of acute periodontal infection, 221 periodontal analysis and recording, 222 root planing.
- 300s, oral surgery. 311 removal of a tooth.
- 400s, endodontics. 415 complete chemomechanical preparation of a root canal, one canal, with 416 used for each additional canal in the same tooth.
- 500s, restorative. 511 to 515 for metallic restorations counted by surface, and 521 to 535 for adhesive tooth coloured restorations.
- 600s and 700s, prosthodontics. Crowns, bridges, dentures and implants, including 613 for a full crown and 661 for placement of an implant fixture.
Most items are three digits. Some newer additions run to four digits, which is normal and not a sign that anything unusual has happened on your account.
Why one appointment produces several item numbers
Because each distinct procedure is coded and rebated separately. A visit is a bundle of coded services, not a single line, and an account with several numbers on it is usually a sign the practice has itemised properly rather than a sign of overcharging.
A first appointment for a new patient often reads as a comprehensive oral examination, one or more radiographs, removal of calculus and a topical fluoride application. That is four or five codes for what felt to you like one visit. Each one is claimed separately, each attracts its own benefit, and some carry their own frequency rules within your policy, which is why part of a visit can be covered while another part is not. Our guides to what happens during a check-up appointment and what a professional clean involves walk through the same appointment from the clinical side.
How to read the tooth number on your account
Australian dental accounts identify teeth using FDI two digit notation, the international standard, rather than the American Universal numbering system you may have seen online. The first digit is the quadrant of the mouth. The second digit is the position of the tooth counting outwards from the midline.
Quadrant 1 is the upper right, 2 is the upper left, 3 is the lower left and 4 is the lower right, all described from your point of view rather than the person looking at you. Positions run 1 to 8, starting with the central incisor at the front. So 11 is your upper right central incisor and 26 is your upper left first molar. Children's teeth follow the same logic with quadrant digits 5 to 8, which is why a child's account can show a tooth number in the fifties.
The practical use of this is simple. If two accounts a year apart both refer to tooth 46, they refer to the same tooth. If one says 46 and the other says 47, they do not, and that is worth asking about before you assume anything.
Same tooth, different surfaces, different item numbers
Filling item numbers change with the number of surfaces restored, which is why two fillings can carry different codes. Every tooth has several named surfaces, and a restoration is recorded by how many of them it covers, not by how long the appointment took.
The Schedule's recording rule is worth knowing. Separate one surface restorations placed on the same surface of the same tooth at the same visit are recorded as one entry. Restorations placed on different surfaces of the same tooth at the same visit are itemised separately. So a single filling wrapping around two surfaces of one tooth attracts a two surface item, while two genuinely separate repairs on different surfaces of that tooth appear as their own entries.
This is the most common source of the question people ask about fillings, which is why the code changed since last time. It usually means the size of the restoration changed, not that anything was upcoded. Our guide to dental fillings explains how surface count relates to what is actually happening in the tooth.
Item 990 and what should come with it
Item 990 is the catch-all code for treatment not otherwise included in the Schedule, and it requires a written description of what was done. It exists because no schedule can anticipate every clinical situation, and it is used legitimately.
What matters is the description. A 990 with no accompanying wording tells you nothing, and funds commonly decline or query a bare 990 for exactly that reason. If one appears on your account without an explanation, ask the practice to add the written description before you lodge the claim. That single request often resolves a rejected claim without any further argument.
Why fee tables attached to item numbers are worth ignoring
A number of websites publish tables pairing each item number with a typical fee. Treat those with real caution. Many of them are directory or lead generation sites, the figures are frequently invented or long out of date, and the underlying premise is wrong: the item number does not determine the fee. Two practices can record the same code on the same tooth and charge differently, because fees are set by each practice.
Only two figures actually matter to you. The first is the fee the practice has quoted you in writing. The second is the benefit your fund will pay for that item on your particular product, which is why it pays to understand how dental cover works in Australia and how your annual extras limit resets. Everything else is noise.
The Australian Dental Association's Policy Statement 5.16 on informed financial consent covers this directly. Section 2.6 states that where charging is based on an itemised schedule, the dentist should give the patient the relevant item numbers so the patient can confirm the applicable health fund benefit or government rebate. In other words, asking for the codes before treatment is not an awkward request. It is the process working the way the profession's own policy says it should. Our article on how to read a dental treatment plan covers what else that document should contain.
Reading your account line by line
Every line on an itemised account is doing a specific job, and knowing which job helps you spot the one thing that is actually wrong. The table below is a quick translation of the fields you are most likely to see.
| What you see on the invoice | What it tells you | What it does not tell you | Where to check it |
|---|---|---|---|
| Item number | Which procedure was performed, as defined in the Australian Schedule of Dental Services and Glossary | What it should cost, or what your fund will pay | Your fund, quoting the number, or ask the practice for the written definition |
| Tooth number in FDI notation | Which tooth was treated, by quadrant and position from the midline | How extensive the treatment was | Your treatment plan and your clinical notes at the practice |
| Surface notation | How many and which tooth surfaces a restoration covers | How long the appointment took or which material was used | The practice, which can show you the chart or the radiograph |
| Procedure description | The plain English version of the item number | Whether the item is within your policy's frequency rules | Your fund's benefit schedule for your product |
| Date of service | Which benefit year and which limit the claim falls into | When your limit resets, which depends on your policy | Your member portal or your fund's contact centre |
| Provider number | Which registered practitioner delivered the treatment | Whether that practitioner has an agreement with your fund | Your fund, or the practice directly |
Common questions
What does item number 011 mean on my dental bill?
Item 011 is a comprehensive oral examination. It is the longer examination normally used at a first visit or when a full reassessment is needed, and it is distinct from 012, the periodic oral examination used at routine recall appointments. Seeing 011 on a first account is expected.
Why was I charged several item numbers for one appointment?
Because each procedure is coded and claimed separately. An examination, a radiograph, a clean and a fluoride application are four different services under the Schedule, even though they happened in one chair on one afternoon. Several codes usually means the account has been itemised correctly.
Do I need item numbers to claim through my health fund?
Yes, in practice. Funds assess claims against item numbers, not descriptions. If you are claiming manually rather than at the practice, make sure the account shows the item number for every line, along with the date of service and the provider number.
What is FDI tooth numbering and why is it on my invoice?
FDI is the two digit international system used to identify teeth. The first digit is the quadrant and the second is the position from the midline, so 36 is the lower left first molar. It appears on your account so that a claim and a clinical record refer to exactly the same tooth.
What does item 990 mean?
Item 990 covers treatment not otherwise included in the Schedule, and it must be accompanied by a written description of what was done. If it appears on your account with no description, ask the practice to add one before lodging the claim, as funds routinely query a bare 990.
How do I check what my fund will pay for an item number before treatment?
Ask the practice for the planned item numbers and the fee for each, then quote those numbers to your fund and ask for the benefit payable, the remaining annual limit and any waiting period. Get the practice's figures in writing so you are comparing two firm numbers rather than two estimates.
Ask for the codes before you agree to anything
An itemised account should never be a mystery. The team at Lumi Dental in Melrose Park is happy to give you the item numbers and a written estimate before treatment begins, so you can check your own benefit and make the decision with the real figures in front of you. If you are booking in for the first time, have a look at what is currently available on our current offers page, or get in touch with any question about a line on an account.
This article is general information only. It is not legal or financial advice and it is not a substitute for advice about your own teeth or your own policy. Item numbers, their definitions and the way funds apply them can change, and benefits differ between funds and products, so confirm the detail with the practice and with your own fund.
