Billing code 77011: CT localizationMedicare rate & RVUs in Texas
Reports CT guidance used to localize a target stereotactically, such as for planning a stereotactic radiosurgery procedure.
Medicare pays $205.12–$231.63 for 77011 in the office in Texas, from Beaumont to Austin. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 77011 covers
This service uses computed tomography to establish stereotactic coordinates for a target, rather than to guide a needle or monitor tissue ablation. A typical use is localizing an intracranial target for stereotactic radiosurgery. The service may be performed in a hospital or imaging setting by a radiologist or a radiation oncology team, with technical staff acquiring the CT images and a qualified clinician interpreting them.
Report 77011 when the documented purpose of the CT is stereotactic localization. The record should identify the target, the stereotactic purpose, and the imaging and interpretation supporting that service. CMS recognizes a professional component, reported with modifier 26, and a technical component, reported with modifier TC; a claim without either modifier represents the global service. The professional component covers interpretation, while the technical component covers equipment and staff. Do not select this code merely because CT images were obtained during another image-guided procedure; distinguish stereotactic localization from CT-guided needle placement or ablation.
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 77011 pays more and less in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 payment localities
$205.12 to $231.63
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin | $231.63 | Unavailable |
| Beaumont | $205.12 | Unavailable |
| Brazoria | $219.56 | Unavailable |
| Dallas | $220.71 | Unavailable |
| Fort Worth | $218.95 | Unavailable |
| Galveston | $220.05 | Unavailable |
| Houston | $221.51 | Unavailable |
| Rest Of Texas | $212.04 | Unavailable |
How the 77011 rate is calculated
Each of 77011’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 · 77011
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 1.18Practice expense 5.37Malpractice 0.08
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 77011
The CMS indicators that decide how 77011 is paid alongside other services.
CMS payment indicators · 77011
CT localization
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 9 | The concept doesn’t apply. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
77011 without 26 · national office
$221.45
CT localization
77011-26 · Professional component
$60.12
Pays only the interpretation and report.
77011 compared with similar codes
Compare codes
77011 vs 77012 vs 77013: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 77012CT guidance
- 77012 is for CT-guided needle placement, including biopsy or injection. Choose 77011 when CT establishes stereotactic coordinates for a target.
- 77013Ct guide for tissue ablation
- 77013 is for CT guidance and monitoring during percutaneous ablation. 77011 reports stereotactic localization, not ablation guidance.
77011 billing questions
How is 77011 different from CT-guided needle placement?
77011 is for CT used to establish stereotactic localization. Use 77012 when CT guides needle placement, such as for a biopsy, aspiration, injection, or localization device.
Can the professional and technical portions be billed separately?
Yes. Report modifier 26 for the professional interpretation or modifier TC for the technical service. Billing without either modifier represents the global service.
What documentation supports 77011?
Document the target, the stereotactic localization purpose, and the CT guidance and interpretation performed. The record should make clear that the service was not simply CT guidance for a needle procedure or ablation.
Is 77011 the code for CT-guided tissue ablation?
No. 77013 describes CT guidance and monitoring for percutaneous ablation; 77011 is for stereotactic localization.
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
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