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CPT 01634 Medicare anesthesia rate

Priced using anesthesia methodology

01634 · PFS Q1 2026 · Historical

Illustrative example

~$306.60

Source

Formula

(base_units + time_units) × anesthesia_cf

Localis calculated this from CMS’s published inputs. Select an underlined value to see where it comes from.

base_units
9
time_units
6
anesthesia_cf
20.44
amount
$306.60

time_units = time_minutes / 15, rounded to one decimal place.

The anesthesia conversion factor is CMS's published locality-adjusted value.

Citations

90-minute example case in Dallas, TX

Anesthesia has no single national rate—payment is (base units + time units) × the locality's anesthesia conversion factor. This example is before sequestration. Enter the service-location ZIP and case length for a local estimate.

Base units 9—set by CMS for this code and the same in every locality. One time unit is 15 minutes, rounded to one decimal, so a 90-minute case adds 6 time units.

View CMS source and method

Amount evidence: base units, time units, and the locality conversion factor, shown in the estimate. The PFS row shows this code is priced as anesthesia.

Inspect PFS status evidence
Code
01634
Release
Q1 2026, revision 1
Result
Priced using anesthesia methodology

Citations

  • Shows this code’s PFS status (J). Result: Priced using anesthesia methodology.

    Physician relative value file (PPRRVU)CMS RVU26AJanuary 1 – March 31, 2026

    This PFS record alone does not establish a $0 allowance or a coverage determination. Any amount from another schedule needs its own evidence.

    PPRRVU2026_Jan_nonQPP.csv row 242 in rvu26a-updated-12-29-2025.zip

    In the CMS file

    Loading rows 240–244 of PPRRVU2026_Jan_nonQPP.csv…

    Download rvu26a-updated-12-29-2025.zip from CMS File fingerprint 9a15cb9cc117f079f5bbd41819bcad7c9ebf71fa8836ee186e079bc15b3269de

Report a problem

CPT 01634 is an anesthesia code, so Medicare has no single national rate: payment is (base units + time units) × the locality's anesthesia conversion factor—for example, about $306.60 for a 90-minute case in Dallas, TX under the Q1 2026 release, before sequestration.

Why is there no national PFS amount for 01634?

Its status indicator is J (anesthesia). Medicare prices this under the anesthesia formula—(base units + time units) × the locality anesthesia conversion factor—not the standard RVU formula. Choose a locality to see that factor.

Contract rate as % of Medicare Copy link

Arbitration outcomes for 01634 are coming Join the waitlist →

Which billing rules and modifiers apply? Copy link

CMS's surgical and split-billing indicators don't adjust 01634's amount.

CMS RVU26AJanuary 1 – March 31, 2026

Can you bill it with another code? Copy link

This code

01634

See every current NCCI pair for 01634 →

Source & method Copy link

The PFS file shows this code is priced as anesthesia. The estimate uses the base units, case length, and locality conversion factor shown beside it.

  1. 01 PPRRVU2026_Jan_nonQPP.csv · Q1 2026 (RVU26A) · row 242—priced as anesthesia
    Source
    Physician relative value file (PPRRVU), Q1 2026 release
    Effective
    January 1 – March 31, 2026
    Locator
    PPRRVU2026_Jan_nonQPP.csv in rvu26a-updated-12-29-2025.zip · row 242 of 19,226 · via CMS
    Fields read
    Status J (col 4)
    SHA-256 9a15cb9cc117f079…
  2. 02 Physician & Other Practitioners · CY2024—volume and who bills it limits
    Source
    CMS Physician & Other Practitioners dataset
    Effective
    Calendar-year snapshot, on a different cycle from the Q1 2026 fee schedule
    Doesn’t establish
    Medicare Advantage, Medicaid or commercial volume.
    Note
    The dataset suppresses rows under 11 beneficiaries.

Cite this rate

CPT 01634 National PFS baseline: No national PFS rate (Q1 2026; participating physician; whole service; GPCI 1.000; sequestration excluded). CMS RVU26A, PPRRVU2026_Jan_nonQPP.csv row 242. Localis. https://localishealth.com/cpt/01634/2026/A

Past releases are never edited, so the citation stays checkable after CMS publishes a newer one. Methodology · Plain-text summary · JSON

How has it changed? Copy link

When does this rate change?

CMS publishes a fee schedule release every quarter (January, April, July, October), and each is versioned here. See what changed each release, or get an email when a new release moves rates.

Sources: CMS Medicare Physician Fee Schedule Relative Value Files.

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Usage and related codes Copy link

In CY2024, 01634 ranked #7,610 of the 7,879 CPT codes billed to Medicare that year, by patients served or total allowed dollars.

Services
31
Allowed
$9,143
Beneficiaries
21

CY2024 Medicare fee-for-service, from the CMS Physician & Other Practitioners dataset (limits). Localis groups related codes for payment research; the grouping isn't the AMA's code families.