CPT code 01770: Arterial anesthesia, upper arm and elbow2026 Medicare rate & RVUs in Maine

CMS doesn’t publish an office rate for 01770 in Maine.

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

What 01770 covers

01770 applies to anesthesia for operations on arteries in the upper arm or elbow when no more specific anesthesia category identifies the arterial procedure. An anesthesia practitioner, such as an anesthesiologist or CRNA, reports the anesthesia service; the code is selected for the arterial operative target, not simply because an incision is near the elbow. Arterial embolectomy is assigned to 01772, which describes removal of an embolus.

The operative report should identify the artery treated and the procedure performed, and the anesthesia record should support the anesthesia service and its start and end times. Use a neighboring anesthesia code when its defined procedure category matches, such as 01780 for upper-arm or elbow venous procedures. Medicare calculates payment as (base units + time units) × the locality’s anesthesia conversion factor; 01770 has 6 base units. Anesthesia time runs from when the practitioner begins preparing the patient until the practitioner is no longer personally attending and the patient can safely be placed under postoperative care; minutes convert to 15-minute units computed to one decimal place, and the conversion factor varies by locality.

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 01770 pays more and less in Maine

How the 01770 rate is calculated

Each of 01770’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 01770

01770 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

01770 compared with similar codes

How to choose

01772Arterial embolectomyUpper arm or elbow

01772 is for arterial embolectomy, the removal of an embolus. Other upper-arm or elbow arterial procedures without a more specific category fall under 01770.

01780Upper arm vein anesthesiaUpper arm and elbow, other vein procedures

01780 covers venous procedures in the upper arm or elbow. 01770 applies when the operative target is an artery.

01740Other elbow anesthesiaOpen or arthroscopic, unspecified

01740 is for an open or arthroscopic elbow operation. Use 01770 when the anesthesia is for an arterial procedure in the upper arm or elbow.

01710Upper-arm/elbow anesthesiaNerve, muscle, tendon NOS

01710 covers procedures on upper-arm or elbow nerves or muscles, not arterial operations.

Codes related to 01770

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

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