Billing code 77307: Isodose planningMedicare rate & RVUs in Utah

Report complex teletherapy isodose planning when an external-beam radiation treatment plan requires the documented complexity of this planning level.

CMS RVU26DEffective Oct 1, 20261 payment locality20.1K Medicare services in 2024

Medicare pays $278.29 for 77307 in the office in Utah (Utah). Which amount applies depends on the service address.

$278.29Office (non-facility)
—Hospital or facility

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

We’ll open 77307 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Utah
  2. What 77307 covers
  3. By payment locality
  4. How it’s calculated
  5. Payment rules
  6. Similar codes
  7. Related codes
  8. Billing questions
  9. Sources

What 77307 covers

This service develops a dose-distribution plan for external-beam radiation therapy. The radiation oncologist establishes the prescription and treatment approach, with a medical dosimetrist or radiation physicist commonly carrying out planning calculations and preparing the isodose distribution. The plan uses treatment and anatomic information to shape how radiation beams cover the target while limiting exposure to nearby normal tissue. It is performed as part of radiation oncology treatment planning, rather than during delivery of each treatment fraction.

Select the complex planning level based on the documented features of the teletherapy plan, not simply the diagnosis or body site. The record should support the plan’s beam arrangement and complexity, dose calculations, and physician review. Basic dosimetry calculation is included in this planning service. CMS recognizes separately priced professional and technical portions: report modifier 26 for the professional interpretation and modifier TC for equipment and staff; without either modifier, the claim represents 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.

77307 in Utah

77307 office and facility rates by payment locality
Payment localityOfficeFacility
Utah$278.29Unavailable

How the 77307 rate is calculated

Each of 77307’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 · 77307

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 2.83Practice expense 5.70Malpractice 0.16

8.6900 adjusted RVUs×$33.4009 conversion factor=$290.25

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 77307

The CMS indicators that decide how 77307 is paid alongside other services.

CMS payment indicators · 77307

Isodose planning

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

77307 without 26 · national office

$290.25

Isodose planning

77307-26 · Professional component

$151.97

Pays only the interpretation and report.

When to use modifier 26

77307 compared with similar codes

Compare codes

77307 vs 77306 vs 77301 vs 77300 vs 77318: national Medicare rates

Swap in your local Medicare rate.

  • 77307
    Isodose planning · 2.83 wRVU
    $290.25
  • 77306
    Radiation plan · 1.37 wRVU
    $150.30−$139.95
  • 77301
    IMRT planning · 7.79 wRVU
    $1,960.30+$1,670.05
  • 77300
    Dosimetry calculation · 0.6 wRVU
    $67.14−$223.11
  • 77318
    Brachytherapy plan · 2.83 wRVU
    $462.94+$172.69

How to choose

77306Radiation plan
Both cover teletherapy isodose planning; 77306 is the simple level, while 77307 is selected when the documented plan meets complex-level criteria.
77301IMRT planning
77301 is for IMRT treatment planning. Use 77307 for complex teletherapy isodose planning when the service is not the IMRT planning service.
77300Dosimetry calculation
77300 describes a basic dosimetry calculation, while 77307 covers the complex isodose plan and includes its basic dosimetry calculation.
77318Brachytherapy plan
77318 is complex isodose planning for brachytherapy; 77307 is complex isodose planning for external-beam teletherapy.

77307 billing questions

How is 77307 distinguished from 77306?

Both describe teletherapy isodose planning, but 77307 is the complex level and 77306 is the simple level. Use the documented planning features and applicable billing code criteria to select the level.

Can 77300 be reported for the dosimetry calculation?

The basic dosimetry calculation is included in 77307. Do not separately report 77300 for that same calculation.

When should modifier 26 or TC be used?

Use modifier 26 for the professional interpretation and modifier TC for the technical portion involving equipment and staff. A claim without either modifier represents the global service.

Is 77307 used for IMRT planning?

Use 77301 for an IMRT treatment plan. Code 77307 describes complex teletherapy isodose planning rather than the IMRT planning service.

What documentation supports the complex planning level?

Document the treatment prescription, planning method and beam arrangement, dose calculations and distribution, and physician review. The record should show why the plan meets the complex level.

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 77307PPRRVU2026_Oct_nonQPP.csv, line 9,056 (RVU26D)
Geographic factors for UtahGPCI2026.csv, line 104 (RVU26D)

Open CMS sourceHow we calculate rates

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