CPT code 64865: Facial nerve repair, intracranial segment2026 Medicare rate & RVUs in Idaho

In Idaho, Medicare pays $879.67 for 64865 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 64865 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 64865 covers

This code is for surgical repair of an injured facial nerve segment located inside the cranial cavity. A neurosurgeon or skull-base surgeon may perform the repair during an operation in which an intracranial facial nerve injury is identified, including an injury associated with tumor surgery or trauma. The key distinction from extracranial facial nerve repair is the location of the nerve being repaired, not simply the fact that the procedure involves the face.

Select the code when the operative report supports repair of the intracranial facial nerve, and document the injury site and repair performed. 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 other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is 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.

How Idaho compares for 64865

Across 109 of 109 payment localities, the facility rate for 64865 runs from $861.73 in Arkansas to $1,198.01 in Alaska. Idaho pays $879.67. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

64865 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 64865 in every payment locality

How the 64865 rate is calculated

Each of 64865’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.

Payment rules and modifiers for 64865

64865 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

Codes related to 64865

Related codes aren’t interchangeable: bill the code that matches the service performed.

How 64865 has changed in Idaho

Price 64865 for an earlier date of service

Where the Idaho rate applies

Idaho is a Medicare payment area, not a city. Our Census mapping connects it to 235 cities and communities in Idaho. Some span more than one payment area; confirm with the service ZIP.

• Aberdeen
• Acequia
• Albion
• American Falls
• Ammon
• Arbon Valley
• Arco
• Arimo

Browse all communities in Idaho

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

Open CMS sourceHow we calculate rates