CPT code 78110: Plasma volume2026 Medicare rate & RVUs

Reports a single-sample plasma volume study using tracer dilution and blood sampling to measure the circulating plasma compartment.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $71.14 for 78110 nationally in the office. Local office rates run $61.43–$98.97.

Medicare rate · 78110

Plasma volume

Office or facility?

Work RVUs
0.19
Total RVUs
2.13
Global days
XXX

National rate · 2026

$71.14

Office setting, before claim adjustments.

See every locality for 78110 →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 78110 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 78110 covers

This study measures circulating plasma volume through tracer dilution and analysis of a blood sample. It may be performed in a nuclear medicine department as part of an evaluation involving suspected abnormal plasma volume or a hematologic blood-volume question. Nuclear medicine staff typically perform the technical work, and a qualified physician interprets the study findings.

Choose this code when the plasma volume protocol uses a single sample; use 78111 when the study uses multiple samples. Documentation should support the plasma-volume measurement, the single-sample protocol, and the interpretation or technical work furnished. CMS recognizes professional and technical components: report modifier 26 for the interpretation, modifier TC for the equipment and staff, or neither modifier when billing the global service.

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 78110 pays more and less

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

109 payment localities

$61.43 to $98.97

$61.43$80.20$98.97
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

78110 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$62.53Unavailable
Alaska$77.67Unavailable
Arizona$68.95Unavailable
Arkansas$61.43Unavailable
Atlanta, GA$72.51Unavailable
Austin, TX$74.63Unavailable
Bakersfield, CA$76.67Unavailable
Baltimore area, MD$76.25Unavailable
Beaumont, TX$65.34Unavailable
Brazoria, TX$70.26Unavailable

78110 rates by state

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

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.

$61.43

$87.76

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
78110 office rate range by state
State / territoryOffice rate rangeLocalities
AK$77.671
AL$62.531
AR$61.431
AZ$68.951
CA$76.54–$98.9729
CO$74.891
CT$76.481
DC$82.911
DE$70.251
FL$69.21–$76.293
GA$64.65–$72.512
GU$79.091
HI$79.091
IA$64.771
ID$65.211
IL$66.59–$74.184
IN$65.681
KS$64.261
KY$63.991
LA$63.81–$67.652
MA$74.25–$83.472
MD$71.83–$82.913
ME$65.46–$69.962
MI$65.87–$70.082
MN$71.801
MO$62.39–$68.123
MS$61.931
MT$71.141
NC$66.311
ND$70.151
NE$65.241
NH$73.521
NJ$77.37–$81.762
NM$66.241
NV$70.931
NY$67.49–$84.915
OH$65.671
OK$64.021
OR$70.40–$77.832
PA$65.88–$74.172
PR$71.811
RI$73.171
SC$66.101
SD$70.041
TN$64.631
TX$65.34–$74.638
UT$67.191
VA$69.58–$82.912
VI$71.811
VT$69.691
WA$74.17–$85.492
WI$67.341
WV$63.591
WY$70.711

How the 78110 rate is calculated

Each of 78110’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 · 78110

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.19

0.19 RVUs× 1.000 GPCI

Practice expense1.89

1.89 RVUs× 1.000 GPCI

Malpractice0.05

0.05 RVUs× 1.000 GPCI

Adjusted RVUs

2.1300

Conversion factor

$33.4009

Medicare rate

$71.14

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

Payment rules and modifiers for 78110

The CMS indicators that decide how 78110 is paid alongside other services.

CMS payment indicators · 78110

Plasma volume

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

78110 without 26 · national office

$71.14

Plasma volume

78110-26 · Professional component

$7.68

Pays only the interpretation and report.

When to use modifier 26

78110 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 78110

    Plasma volume0.19 wRVU

    $71.14

  • 78111

    Plasma volume0.21 wRVU

    $96.86+$25.72

  • 78120

    Red cell mass0.22 wRVU

    $72.48+$1.34

  • 78122

    Blood volume test0.44 wRVU

    $101.20+$30.06

How to choose

78111Plasma volume
Both codes measure plasma volume; choose 78110 for a single-sample protocol and 78111 for a multiple-sample protocol.
78120Red cell mass
78120 measures red cell mass using a single sample. Choose 78110 when the measured compartment is plasma.
78122Blood volume test
78122 is for whole blood volume determination; 78110 is specific to plasma volume.

78110 billing questions

How is 78110 different from 78111?

78110 is for a plasma volume study using a single sample. Use 78111 when the protocol uses multiple samples.

Which modifier identifies the physician interpretation?

Append modifier 26 when billing only the professional interpretation. Modifier TC identifies the technical work, including equipment and staff.

When is the global service reported?

Bill 78110 without modifier 26 or TC when the billing entity furnishes both the professional and technical components.

Is this code for red cell mass or total blood volume?

No. 78110 measures plasma volume; 78120 and 78121 measure red cell mass, while 78122 is for whole blood volume determination.

What documentation supports the single-sample code?

The record should identify the plasma volume study and support that its protocol used a single sample. The interpretation should document the physician's findings when the professional component is billed.

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
RVUs for 78110PPRRVU2026_Oct_nonQPP.csv, line 9,224 (RVU26D)

Open CMS sourceHow we calculate rates

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