Summary & Overview
CPT 77089: Trabecular Bone Score Calculation and Fracture Risk Report
CPT code 77089 covers software-based analysis of existing imaging data to derive a patient’s trabecular bone score (TBS), accompanied by an interpretation and a report that assess fracture risk. This code matters nationally because TBS provides complementary information to bone mineral density for fracture-risk stratification, influencing clinical decision-making for osteoporosis management and fall/fracture prevention strategies. Adoption of image-derived bone quality assessments affects imaging workflows, radiology reporting, and payer coverage considerations across outpatient imaging centers and radiology departments.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical purpose of 77089, typical sites of service, and the scope of services represented by the code. The publication outlines expected benchmarks and coverage themes, summarizes how the service integrates into clinical pathways for osteoporosis and fracture-risk assessment, and highlights policy and billing considerations relevant to national payers. Data not available in the input for some payer-specific coverage details, coding adjacencies, and associated ICD-10 diagnoses is noted where applicable. The content is intended as an informational summary of the code and its clinical and billing context for national stakeholders.
Billing Code Overview
CPT code 77089 describes a diagnostic imaging analysis in which a provider uses existing imaging data and specialized software to calculate a patient’s trabecular bone score. The service includes an interpretation and a report that summarizes the patient’s fracture risk based on the derived trabecular bone metrics.
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Service type: Quantitative image‑derived bone quality assessment using software analysis with interpretation and reporting
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Typical site of service: Outpatient imaging centers, radiology departments, and other ambulatory care settings where diagnostic images are available for secondary analysis
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Clinical & Coding Specifications
Clinical Context
A 68-year-old postmenopausal woman with a history of fragility wrist fracture and long-term corticosteroid use is referred for bone health assessment. The patient undergoes dual-energy X-ray absorptiometry (DXA) imaging of the lumbar spine and proximal femur. The provider uses the DXA image data and specialized software to calculate the trabecular bone score and performs an interpretation addressing microarchitectural bone quality and estimated fracture risk. The clinical workflow includes: ordering the test, acquiring DXA images, exporting images to trabecular bone score software, automated calculation of the score, physician review of the numeric result and correlation with bone mineral density and clinical risk factors, generation of a written report documenting the trabecular bone score, interpretation of fracture risk, and inclusion of the result in the patient’s osteoporosis management plan. Typical sites of service include an outpatient radiology practice, an osteoporosis clinic, or an ambulatory imaging center.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing only the physician interpretation/report for the trabecular bone score separate from technical imaging or software fee |
TC |