Billing code 70328: Jaw joint X-rayMedicare rate & RVUs in Oklahoma
Reports plain X-rays of one temporomandibular joint with the mouth open and closed, typically to assess pain, clicking, or restricted jaw movement.
Medicare pays $30.99 for 70328 in the office in Oklahoma (Oklahoma). Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 70328 covers
This exam images one temporomandibular joint (TMJ) with the mouth both open and closed. The views show the joint in two positions when a patient has symptoms such as jaw pain, clicking, or limited opening. Images may be acquired in an outpatient imaging department or office, with a radiologist or other qualified clinician interpreting them.
Select 70328 when the ordered and documented plain-film study covers one TMJ in both mouth positions. The report should identify the side examined and describe the open- and closed-mouth views. A study of both joints belongs to 70330 instead. CMS prices 70328 as a diagnostic test with separate professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies image acquisition using equipment and staff, and an unmodified claim represents the complete service. Match the claim to the portion the billing provider furnished.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
70328 in Oklahoma
| Payment locality | Office | Facility |
|---|---|---|
| Oklahoma | $30.99 | Unavailable |
How the 70328 rate is calculated
Each of 70328’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 70328
RVUs × geographic indexes × conversion factor
Work0.18
0.18 RVUs× 1.000 GPCI
Practice expense0.82
0.82 RVUs× 1.000 GPCI
Malpractice0.02
0.02 RVUs× 1.000 GPCI
Adjusted RVUs
1.0200
Conversion factor
$33.4009
Medicare rate
$34.07
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 70328
The CMS indicators that decide how 70328 is paid alongside other services.
CMS payment indicators · 70328
Jaw joint X-ray
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
70328 without 26 · national office
$34.07
Jaw joint X-ray
70328-26 · Professional component
$8.68
Pays only the interpretation and report.
70328 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 70330TMJ X-ray
- Both codes involve open- and closed-mouth TMJ radiographs. Use 70328 for one joint and 70330 when both joints are examined.
- 70332TMJ imaging
- 70332 is for TMJ contrast arthrography. Use 70328 for the unilateral plain-film open- and closed-mouth examination.
- 70336Jaw joint MRI
- 70336 describes TMJ MRI. Use 70328 when the study consists of unilateral open- and closed-mouth X-rays.
70328 billing questions
When should 70328 be chosen instead of 70330?
Choose 70328 for open- and closed-mouth radiographs of one TMJ. Use 70330 when the study examines both TMJs.
What documentation supports 70328?
The order and imaging report should establish which joint was examined and that images were obtained with the mouth open and closed.
When is modifier 26 appropriate?
Append modifier 26 when the billing provider supplies only the interpretation of the unilateral TMJ X-rays.
When is modifier TC appropriate?
Append modifier TC when the billing provider supplies the equipment and staff for image acquisition but not the interpretation. Report 70328 without either modifier when that provider furnishes both portions.
Is 70328 the code for a TMJ MRI or contrast arthrogram?
No. 70328 describes plain X-rays taken with the mouth open and closed; TMJ MRI and contrast arthrography have separate codes.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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