Billing code 27842: Ankle dislocationMedicare rate & RVUs in Delaware
Report 27842 for closed reduction of an ankle dislocation when anesthesia is required, rather than an open procedure or reduction without anesthesia.
CMS doesn’t publish an office rate for 27842 in Delaware.
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 27842 covers
An orthopedic surgeon or other qualified physician uses closed manipulation to restore alignment of a dislocated ankle without opening the joint. The service is typically performed in a hospital or ambulatory surgical setting when the reduction requires anesthesia. Documentation should identify the ankle dislocation, the closed reduction performed, and the anesthesia requirement; post-reduction findings help show the result of treatment.
Select 27842 when the dislocation is treated closed and anesthesia is required. Use 27840 when closed treatment is performed without anesthesia; open treatment belongs to a different code. The code has a 90-day global period, which includes the day-before preoperative visit and 90 days of related postoperative care. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are reduced to 50%. For bilateral treatment, modifier 50 is paid at 150%. Medicare does not pay an assistant at surgery for this code, and co-surgeon and team-surgery billing 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.
27842 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $484.78 |
How the 27842 rate is calculated
Each of 27842’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 · 27842
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 6.30Practice expense 7.09Malpractice 1.31
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 27842
27842 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27842
Ankle dislocation
| 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) | 1 | Not paid (statutory restriction). |
| 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 · 27842
Ankle dislocation
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
27842 without 50 · national facility
$490.99
Ankle dislocation
27842-50 · Bilateral: 150%
$736.49
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).
27842 compared with similar codes
Compare codes
27842 vs 27840 vs 27846 vs 27848 vs 27810: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 27840Ankle dislocation
- Use 27840 for closed ankle dislocation treatment without anesthesia. Use 27842 when the closed reduction requires anesthesia.
- 27846Ankle dislocation
- 27846 is for open treatment of an ankle dislocation. Code 27842 describes closed manipulation without opening the joint.
- 27848Ankle dislocation
- 27848 describes open ankle dislocation treatment with fixation of associated fracture or fractures. Use 27842 for closed reduction under anesthesia.
- 27810Ankle fracture treatment
- 27810 treats an ankle fracture by closed manipulation; 27842 treats an ankle dislocation by closed reduction under anesthesia.
27842 billing questions
How does 27842 differ from 27840?
Both describe closed treatment of an ankle dislocation. Use 27842 when anesthesia is required and 27840 when it is not.
Does 27842 describe an open reduction?
No. It is for closed manipulation without opening the joint. Open treatment is reported with 27846 or, when associated fracture fixation is part of the open treatment, 27848.
What documentation supports 27842?
Document the ankle dislocation, the closed reduction performed, and that anesthesia was required. Include the post-reduction assessment and imaging findings when obtained.
How is bilateral treatment reported?
When both ankles are treated, modifier 50 applies under the CMS bilateral rule; payment is at 150%.
Can an assistant or co-surgeon be billed?
Medicare does not pay an assistant at surgery for 27842. Co-surgeons and team surgery are not permitted for this code.
What does the 90-day global period include?
It includes the day-before preoperative visit and 90 days of related postoperative care.
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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