CPT 76977 Peripheral Bone Density — Reimbursement | OpenPayer

Summary & Overview

CPT 76977: Peripheral Bone Density Measurement by Ultrasound

CPT code 76977 identifies an ultrasound-based bone density measurement of one or more peripheral sites (for example, wrist or knee) and includes both measurement and interpretation. This procedure is a focused, non-central densitometry service that can support osteoporosis screening, fracture risk assessment, and monitoring of bone health where central dual-energy X-ray absorptiometry (DXA) is not used or accessible. Nationally, peripheral ultrasound testing is a relevant diagnostic option for outpatient settings and ambulatory imaging centers.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for peripheral bone density ultrasound, typical sites of service, and the kinds of benchmarks and reimbursement categories often associated with this service. The publication outlines payer coverage patterns, common billing modifiers, and how this service fits within diagnostic imaging and bone health workflows.

This analysis provides practical reference material: a technical description of the service, payer coverage landscape, coding considerations, and points of comparison to central DXA testing. Data not available in the input is noted where necessary; the focus remains on clarifying what CPT code 76977 represents and how it is positioned within national diagnostic imaging and bone health services.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare76977CPTbone densityperipheral ultrasounddiagnostic imagingosteoporosis screeningambulatory caremedical billing

Billing Code Overview

CPT code 76977 describes a bone density measurement of one or more peripheral sites using ultrasound. The procedure includes both the measurement and interpretation of peripheral bone density, commonly performed on sites such as the wrist or knee.

Service type: Diagnostic imaging — peripheral bone density measurement (ultrasound)

Typical site of service: Outpatient clinic, physician office, or ambulatory imaging center (peripheral site such as wrist or knee)

Clinical & Coding Specifications

Clinical Context

A typical patient is a postmenopausal woman or older adult referred for peripheral bone density screening after risk assessment or a fragility fracture. The patient arrives at an outpatient diagnostic imaging clinic or a primary care office equipped with a peripheral quantitative ultrasound device. The technologist explains the procedure, confirms laterality and the specific peripheral site (commonly calcaneus, distal radius/wrist, or tibia), and positions the limb in the ultrasound cradle. The device performs the measurement, capturing bone ultrasound parameters; the technologist ensures image quality and repeats measurement if artifact or positioning error occurs. The interpreting clinician (often a radiologist, endocrinologist, or primary care physician with bone health expertise) reviews the measurements, generates a brief report with device-specific T-score or broadband ultrasound attenuation values, and documents interpretation and clinical impression. Results are communicated to the ordering provider for osteoporosis risk stratification, treatment decisions, or need for central DXA referral. Typical site of service: outpatient diagnostic imaging center, ambulatory clinic, or physician office with point-of-care peripheral ultrasound bone densitometry equipment.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	When reporting only the interpretation by the physician separate from the technical component

CPT 76975: Endoscopic Ultrasound Supervision and Interpretation

CPT-76978-CONTRAST-ENHANCED-MICROBUBBLE-ULTRASOUND-LESION-ASSESSMENT

CPT 76978: Microbubble Contrast-Enhanced Ultrasound for Lesion and Perfusion Assessment

CPT-76999-UNLISTED-ULTRASOUND-PROCEDURE

CPT 76999: Unlisted Diagnostic or Interventional Ultrasound Procedure

CPT-76982-ULTRASOUND-ELASTOGRAPHY-SUSPICIOUS-LESION

CPT 76982: Ultrasound Elastography for Suspicious Lesion Evaluation

CPT-76987-INTRAOPERATIVE-CARDIAC-ULTRASOUND-CONGENITAL-HEART-DISEASE

CPT 76987: Intraoperative Cardiac Ultrasound for Congenital Heart Disease

CPT-76998-INTRAOPERATIVE-ULTRASOUND-GUIDANCE

CPT 76998: Intraoperative Ultrasound Guidance to Examine Organs/Tissues

CPT-76983-ULTRASOUND-ELASTOGRAPHY-SUSPICIOUS-LESION

CPT 76983: Ultrasound Elastography of Additional Suspicious Lesion

CPT-76981-ULTRASOUND-ELASTOGRAPHY-ORGAN-BASELINE-ASSESSMENT

CPT 76981: Ultrasound Elastography for Organ Baseline Assessment

CPT-76989-INTRAOPERATIVE-CARDIAC-ULTRASOUND-INTERPRETATION-REPORT

CPT 76989: Intraoperative Cardiac Ultrasound Interpretation for Congenital Heart Disease

CPT-76979-TARGETED-CONTRAST-ENHANCED-ULTRASOUND-MICROBUBBLE

CPT 76979: Targeted Microbubble Contrast–Enhanced Ultrasound

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Taxonomy Code	Specialty	Notes
`207Q00000X`	Radiology	Radiologists frequently interpret peripheral bone density ultrasound when performed in imaging settings
`208000000X`	Family Medicine	Primary care physicians may perform or order point-of-care peripheral bone densitometry for screening and follow-up
`207L00000X`	Endocrinology	Endocrinologists interpret results in the context of metabolic bone disease
`261QM0802X`	Nurse Practitioner	NPs in primary care or specialty clinics may perform or request the test
`363LP0800X`	Physician Assistant	PAs often perform or assist with point-of-care measurements in ambulatory settings

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M80.00XA`	Age-related osteoporosis with current pathological fracture, unspecified site, initial encounter for fracture	Peripheral ultrasound may be used in assessment following fragility fractures as part of bone health evaluation
`M81.0`	Age-related osteoporosis without current pathological fracture	Common indication for screening with peripheral bone density measures to assess fracture risk
`M85.8`	Other specified disorders of bone density and structure	Used when bone density abnormality is suspected but does not meet classic osteoporosis coding
`Z13.820`	Encounter for osteoporosis screening	Administrative code used when the visit is specifically for screening evaluation
`Z79.51`	Long term (current) use of bisphosphide	Used in longitudinal care when bone density monitoring is performed during therapy

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`76977`	Ultrasound bone density measurement and interpretation of one or more peripheral sites (e.g., heel, wrist, knee)	This is the primary code describing peripheral ultrasound bone density measurement and interpretation
`77080`	Dual-energy X-ray absorptiometry (DXA), bone density study, one or more sites; axial skeleton (eg, hips, pelvis, spine)	Often performed when peripheral ultrasound results indicate abnormal bone density or when central DXA is needed for diagnostic confirmation
`77085`	Dual-energy X-ray absorptiometry (DXA), bone density study, peripheral site(s) (e.g., heel), single or bilateral	Alternative densitometry modality for peripheral sites; may be used instead of or in conjunction with ultrasound
`99401`	Preventive counseling, individual, approximately 15 minutes (Note: this is a CPT preventive counseling code)	Counseling on osteoporosis prevention or bone health frequently accompanies testing and management discussions
`99000`	Handling and/or conveyance of specimen for transfer from patient to laboratory (if applicable)	Not typically used for imaging but listed here for workflows that include specimen handling (Note: use only when applicable)

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