Billing code 64893: Nerve graftMedicare rate & RVUs in Virginia
Reports a single-strand nerve graft longer than 4 cm to bridge a nerve gap in an arm or leg, excluding the hand and foot.
CMS doesn’t publish an office rate for 64893 in Virginia.
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 64893 covers
A peripheral nerve surgeon uses a graft to bridge a gap in a nerve of the arm or leg when the nerve ends cannot be joined directly without tension. This reconstruction may follow traumatic nerve loss or a defect encountered during surgery. A donor nerve such as the sural nerve is a common graft source; graft procurement and placement are part of the graft service. This code distinguishes a single-strand reconstruction from a multistrand graft and applies to the arm or leg rather than the hand or foot.
Select the code from the operative report’s documented anatomic site, graft length, and strand configuration. The record should support the nerve reconstructed and the graft used to span the defect. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Do not append modifier 50; CMS identifies it as inappropriate for this descriptor and anatomy. Assistant-at-surgery payment may be made; 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 64893 pays more and less in Virginia
| Payment locality | Office | Facility |
|---|---|---|
| Dc + Md/Va Suburbs | Unavailable | $1,121.58 |
| Virginia | Unavailable | $976.07 |
How the 64893 rate is calculated
Each of 64893’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 · 64893
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 16.45Practice expense 10.48Malpractice 3.50
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 64893
64893 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 64893
Nerve graft
| 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) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| 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) | 0.11/0.76/0.13 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 64893
Nerve graft
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 51 · payment effect
With and without the modifier
64893 without 51 · national facility
$1,016.39
Nerve graft
64893-51 · Second procedure: 50%
$508.20
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
64893 compared with similar codes
Compare codes
64893 vs 64892 vs 64898 vs 64891 vs 64857: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 64892Nerve graft
- This code is for a single-strand arm or leg graft over 4 cm; 64892 is the corresponding length category under 4 cm.
- 64898Nerve graft
- Both cover arm or leg grafts over 4 cm, but 64898 is for a multistrand reconstruction rather than a single strand.
- 64891Nerve graft
- Use 64891 for a single-strand graft over 4 cm in the hand or foot; this code is for the arm or leg.
- 64857Nerve repair
- 64857 describes nerve repair in the arm or leg; use this code when the documented service bridges the defect with a single-strand graft over 4 cm.
64893 billing questions
When is this code selected instead of 64892?
Use 64893 for a single-strand graft in the arm or leg when the documented graft length is more than 4 cm. Code 64892 describes the corresponding graft length of less than 4 cm.
How does this differ from 64898?
Both describe an arm or leg graft over 4 cm, but 64893 is for a single strand and 64898 is for a multistrand graft.
Can modifier 50 be used for grafts on both sides?
No. CMS identifies modifier 50 as inappropriate for this descriptor and anatomy; report the documented graft service without that modifier.
What documentation supports the code selection?
The operative report should identify the reconstructed nerve and site, the graft length, and whether the reconstruction used a single strand or multiple strands.
Are related postoperative visits included?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
May an assistant or co-surgeon be reported?
CMS permits assistant-at-surgery payment for this code. 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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