Billing code 27830: Joint dislocation careMedicare rate & RVUs in Oregon
Report closed care of a proximal tibiofibular joint dislocation when the treating clinician manages the injury without manipulating the joint.
Medicare pays $425.87–$461.10 for 27830 in the office in Oregon, from Rest Of Oregon to Portland. 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 27830 covers
This code describes nonoperative treatment of a dislocation at the proximal tibiofibular joint, where the tibia and fibula meet near the knee. It applies when the clinician treats the dislocation without manipulating the joint. Orthopedic surgeons and other clinicians qualified to manage musculoskeletal injuries may provide this care, commonly in a hospital or emergency setting. The involved joint is distinct from the ankle joint and from the distal tibiofibular syndesmosis.
Select this code when the documentation supports a proximal tibiofibular joint dislocation and closed treatment without manipulation. Record the affected side, the treatment approach, and the plan for stabilization and follow-up. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple procedure reduction. Bilateral treatment with modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.
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.
Where 27830 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $461.10 | $378.35 |
| Rest Of Oregon | $425.87 | $351.68 |
How the 27830 rate is calculated
Each of 27830’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 · 27830
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 3.86Practice expense 8.34Malpractice 0.83
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 27830
27830 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27830
Joint dislocation care
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| 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 | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 27830
Joint dislocation care
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
27830 without 50 · national office
$435.21
Joint dislocation care
27830-50 · Bilateral: 150%
$652.82
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
27830 compared with similar codes
Compare codes
27830 vs 27831 vs 27832 vs 27840 vs 27829: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 27831Dislocation treatment
- Both address closed treatment of a proximal tibiofibular joint dislocation. Use 27830 when treatment is without manipulation and 27831 when manipulation is performed.
- 27832Joint dislocation
- This code is for closed treatment without manipulation; 27832 is for open treatment of the proximal tibiofibular joint dislocation.
- 27840Ankle dislocation
- Code 27840 concerns an ankle-joint dislocation. Code 27830 concerns the proximal tibiofibular joint near the knee.
- 27829Syndesmosis repair
- Code 27829 concerns disruption of the distal tibiofibular joint, commonly termed the syndesmosis; 27830 concerns a proximal joint dislocation.
27830 billing questions
How does this differ from 27831?
Code 27830 is for closed treatment without manipulation. Code 27831 is the related code when manipulation is performed.
Can this code be used for an ankle dislocation?
No. It applies to the proximal tibiofibular joint near the knee. An ankle-joint dislocation is a different anatomical injury.
What documentation supports reporting this code?
Document the proximal tibiofibular joint dislocation, the affected side, and that treatment was closed and performed without manipulation.
Is related follow-up care included?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is bilateral treatment reported?
For bilateral treatment, modifier 50 applies; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment is allowed only with documentation of medical necessity. Co-surgeons and team surgery are not permitted.
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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