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CPT code 01931: Portal intervention anesthesia, intrahepatic or portal system2026 Medicare rate & RVUs

Anesthesia for therapeutic image-guided procedures involving the intrahepatic or portal circulation, including creation of a transjugular intrahepatic portosystemic shunt.

CMS RVU26DEffective Oct 1, 2026109 payment localities3.6K Medicare services in 2024

Medicare rate · 01931

Portal intervention anesthesia, intrahepatic or portal system

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for 01931 →Billed by an NP, PA or therapist? →

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

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 01931 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 01931 covers

This service covers anesthesia for therapeutic image-guided intervention directed at the intrahepatic or portal circulation. A typical example is creation of a transjugular intrahepatic portosystemic shunt (TIPS). An anesthesiologist or CRNA may provide the service in an interventional radiology suite or hybrid procedural setting while the interventionalist accesses and treats the portal system.

Choose 01931 for treatment involving the intrahepatic or portal circulation, rather than venous intervention not otherwise specified, arterial intervention, or diagnostic vessel imaging alone. The anesthesia record should identify the therapeutic service and document anesthesia start and end times; the interventional report should establish the treated vascular territory and procedure. This code has 7 base units. Medicare payment is (base units plus time units) multiplied by the locality’s anesthesia conversion factor; time is counted in minutes and converted to 15-minute units to one decimal place, from preparation start until the practitioner is no longer personally attending and the patient can safely enter postoperative care.

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 01931 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

01931 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

01931 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
01931 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 01931 rate is calculated

Each of 01931’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 · 01931

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 01931

01931 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.

Place of service · 01931

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

—

01931 isn’t priced in this setting.

01931 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • 01931

    Portal intervention anesthesia, intrahepatic or portal system0 wRVU

    Not priced

  • 01930

    Venous intervention anesthesia, other venous regions0 wRVU

    Not priced

  • 01924

    Arterial intervention, other arterial sites0 wRVU

    Not priced

  • 01916

    Angiography anesthesia, diagnostic artery or vein study0 wRVU

    Not priced

  • 01932

    Central venous anesthesia, thoracic and jugular veins0 wRVU

    Not priced

How to choose

01930Venous intervention anesthesiaOther venous regions
Choose 01931 when the therapeutic target is the intrahepatic or portal circulation. Use 01930 for therapeutic interventional radiology involving veins not otherwise specified.
01924Arterial interventionOther arterial sites
01924 applies to therapeutic interventional radiology involving arteries not otherwise specified; 01931 is for work involving the intrahepatic or portal circulation.
01916Angiography anesthesiaDiagnostic artery or vein study
01916 is for diagnostic arteriography or venography. Use 01931 when the intrahepatic or portal procedure is therapeutic.
01932Central venous anesthesiaThoracic and jugular veins
01932 covers therapeutic interventions involving intrathoracic or jugular vessels, while 01931 identifies procedures involving the intrahepatic or portal circulation.

Codes related to 01931

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

Codes related to 01931
CodeHow it relatesNational office range
Same family
01930Venous intervention anesthesia, other venous regionsCovers therapeutic interventional radiology involving veins not otherwise specified.No office rate
01932Central venous anesthesia, thoracic and jugular veinsCovers therapeutic interventional radiology involving intrathoracic or jugular vessels.No office rate
01933Intracranial intervention, therapeutic radiology proceduresCovers therapeutic interventional radiology involving intracranial vessels.No office rate

01931 billing questions

When should 01931 be chosen instead of 01930?

Use 01931 for therapeutic intervention involving the intrahepatic or portal circulation. Code 01930 covers therapeutic interventional radiology involving veins not otherwise specified.

Is TIPS a typical procedure for 01931?

Yes. Creation of a transjugular intrahepatic portosystemic shunt is a typical example of a therapeutic procedure involving the portal circulation.

Does 01931 include the TIPS procedure itself?

No. The anesthesia practitioner reports the anesthesia service, while the interventionalist reports the procedure under the applicable procedural code.

What records support reporting 01931?

The anesthesia record should show the service and anesthesia time. The interventional report should identify the procedure and confirm that it involves the intrahepatic or portal circulation.

How are units calculated for Medicare?

The code has 7 base units. Medicare adds time units, calculated from anesthesia minutes in 15-minute units to one decimal place, and multiplies the total by the locality’s anesthesia conversion factor.

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

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