Billing code 77080: DXA bone density scanMedicare rate & RVUs in Guam
Axial DXA measures bone density at central sites such as the lumbar spine or hip for osteoporosis evaluation and treatment monitoring.
Medicare pays $43.52 for 77080 in the office in Guam (Hawaii, Guam). 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 77080 covers
Axial DXA uses low-dose X-rays to measure bone mineral density at one or more central sites, usually the lumbar spine and proximal femur. It helps evaluate osteoporosis risk and monitor response to treatment. A technologist positions the patient and acquires images in an imaging center, physician office, or hospital outpatient department. A radiologist or another qualified interpreting physician evaluates the results, including applicable T-scores or Z-scores, and signs the report.
Report one unit of 77080 for an axial DXA session, whether one or multiple axial sites are measured. If the same session includes DXA vertebral fracture assessment, report the combined service with 77085 instead. Record the clinical indication, measured sites, and signed interpretation. CMS separately prices the technical component, billed with modifier TC for equipment and staff, and the professional component, billed with modifier 26 for interpretation and report. When one billing entity furnishes both components, report the global service without a component modifier.
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.
77080 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | $43.52 | Unavailable |
How the 77080 rate is calculated
Each of 77080’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 · 77080
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.20Practice expense 0.96Malpractice 0.02
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 77080
The CMS indicators that decide how 77080 is paid alongside other services.
CMS payment indicators · 77080
DXA bone density scan
| 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) | 0 | Not paid without supporting documentation. |
| 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
77080 without 26 · national office
$39.41
DXA bone density scan
77080-26 · Professional component
$9.35
Pays only the interpretation and report.
77080 compared with similar codes
Compare codes
77080 vs 77085 vs 77081 vs 77078 vs 77086: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 77085DXA bone density
- Choose 77085 when the session includes both axial bone density measurement and DXA vertebral fracture assessment; 77080 covers the axial density study without that assessment.
- 77081Bone density
- 77081 measures appendicular sites such as the forearm or heel. Choose 77080 for an axial DXA study of sites such as the lumbar spine or hip.
- 77078CT bone density
- 77078 measures axial bone density using quantitative CT; 77080 uses dual-energy X-ray absorptiometry.
- 77086Vertebral fracture assessment
- 77086 describes DXA vertebral fracture assessment without an axial bone density study. When both are performed in the same session, report the combined service with 77085 instead of 77080 and 77086.
77080 billing questions
Can 77080 be reported with 77086 when vertebral fracture assessment is done on the same day?
For axial DXA with vertebral fracture assessment in the same session, report 77085 rather than 77080 and 77086. Code 77086 describes vertebral fracture assessment performed without an axial bone density study.
How many units are billed if both the spine and both hips are scanned?
One unit. An axial DXA session covers one or more axial sites, so scanning the lumbar spine and both hips remains one service.
Which modifier does the reading physician use when the scan is done at a hospital?
The interpreting physician reports the professional component with modifier 26. The hospital bills the technical portion on its facility claim; an entity furnishing both components reports the global service without a component modifier.
What documentation supports 77080?
The record should identify the reason for the bone density study, the axial sites measured, and the interpreting clinician's signed report.
Is trabecular bone score reported separately from the DXA?
A separately performed trabecular bone score analysis of lumbar spine DXA images may be reported in addition to 77080. Select the appropriate code from 77089–77092 according to the calculation, technical work, and interpretation furnished.
What if only a peripheral site like the forearm is measured?
Report 77081 for appendicular DXA when the study measures a peripheral site without an axial bone density measurement.
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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