CPT 73050: Bilateral Acromioclavicular Joint X‑ray
CPT code 73050 is the national billing code for bilateral acromioclavicular (AC) joint radiography, including stress views when the patient holds weights. This imaging study is commonly used to assess AC joint injuries, separations, and degenerative disease such as arthritis. It matters nationally because AC joint radiographs are a frequent diagnostic tool in musculoskeletal care, supporting clinical decision-making for orthopedic management, urgent care, and postoperative assessment.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and the service type. The publication summarizes common billing modifiers and payer considerations relevant to imaging services, highlights benchmarks where available, and outlines policy and coverage themes that affect reimbursement and prior authorization practices for radiographic procedures.
The report is intended to inform billing staff, practice managers, radiology clinicians, and policy analysts about the role of CPT code 73050 in musculoskeletal imaging workflows, documentation expectations, and payer interactions. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 73050 describes a bilateral radiographic study of the acromioclavicular (AC) joints. The procedure evaluates injury or joint disease such as arthritis by obtaining X‑ray images of both the left and right AC joints. The provider may request the patient hold weights during imaging to apply stress to the joints and improve detection of instability or subtle separations.
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Service type: Diagnostic radiography of bilateral acromioclavicular joints (stress views when indicated)
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Typical site of service: Outpatient radiology suite, hospital radiology department, or ambulatory imaging center
Clinical & Coding Specifications
Clinical Context
A 45-year-old recreational weightlifter presents to the outpatient radiology department with unilateral right shoulder pain after a fall onto the shoulder three days prior. On exam there is localized tenderness at the acromioclavicular (AC) joint, mild swelling, and pain with cross-body adduction. The ordering orthopedic clinician requests bilateral AC joint radiographs to compare joint alignment and to evaluate for AC joint separation and degenerative changes. The patient is positioned upright for bilateral AC joint views; the technologist acquires standard AP views centered on each AC joint and repeats stress views with the patient holding bilateral 5–10 lb weights to accentuate separation if indicated. Images are reviewed by the radiologist who documents joint congruity, coracoclavicular interval, presence of fracture fragments, and arthritic changes. The final report with radiographic findings is returned to the referring provider for management planning (conservative care, immobilization, or orthopedic follow-up). Typical site of service is an outpatient radiology suite or hospital radiology department; this procedure may also occur in an urgent care center with radiographic capability.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing physician interpretation separate from technical component (use with TC). |
TC | Technical component | When billing only the equipment, technologist, and supplies for the imaging study. |
50 | Bilateral procedure | When bilateral AC joint radiographs are reported as a single bilateral service (if payer requires). |
LT | Left side | When reporting only the left AC joint study or when laterality needs specification. |
RT | Right side | When reporting only the right AC joint study or when laterality needs specification. |
59 | Distinct procedural service | When an unrelated separate radiographic service is performed the same day and needs separation. |
22 | Increased procedural services | For unusual work or complexity beyond typical imaging (rare for standard AC joint x-rays). |
52 | Reduced services | When the study is partially reduced or incomplete (e.g., patient intolerance prevented all views). |
53 | Discontinued procedure | If imaging was terminated for patient safety before completion. |
76 | Repeat procedure by same physician | When the same provider repeats the AC joint x-rays later the same day. |
77 | Repeat procedure by another physician/technologist | When repeated by a different provider or technologist (note: 77 not in provided list; omitted). |
59 | Distinct procedural service | (Duplicate entry avoided; see above) |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
2088P0200X | Diagnostic Radiology | Most common specialty performing and interpreting AC joint radiographs. |
207RP1001X | Orthopedic Surgery | Often orders the study and may interpret in some settings for preoperative planning. |
3336A0200X | Physical Medicine & Rehabilitation | May order imaging for functional joint assessment and conservative management. |
2085R0202X | Emergency Medicine | Performs or requests AC joint imaging in acute injury presentations. |
261QP2300X | Sports Medicine | Commonly manages athletic injuries and orders bilateral stress AC joint views. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
S43.01XA | Dislocation of right acromioclavicular joint, initial encounter | Acute AC joint separation evaluated with stress and comparative bilateral views. |
S43.02XA | Dislocation of left acromioclavicular joint, initial encounter | Same as above for the left side; bilateral imaging used when comparison is needed. |
M75.11 | Adhesive capsulitis of right shoulder | Differentiation of AC joint arthropathy versus glenohumeral causes of shoulder pain. |
M19.011 | Primary osteoarthritis, right shoulder | Radiographs assess AC joint arthritic changes contributing to pain. |
M75.50 | Bursitis of shoulder, unspecified | Radiographs help exclude osseous abnormality when soft-tissue pathology is suspected. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
73030 | Radiologic examination, shoulder, complete, minimum of two views | May be ordered instead of or in addition to AC joint views when glenohumeral pathology is suspected. |
73040 | Radiologic examination, shoulder, unilateral, AP and axillary; minimum of two views | Provides additional shoulder-level views if rotator cuff or joint space needs further evaluation. |
73060 | Radiologic examination, clavicle, unilateral, minimum of two views | Ordered when clavicular fracture is suspected in conjunction with AC joint injury. |
73500 | Radiologic examination, hip, unilateral; 2 views | Data not available in the input. |
72010 | Radiologic examination, thoracic spine; 2 views | Occasionally ordered when mechanism of injury suggests associated cervical/thoracic trauma. |
73110 | Radiologic examination, forearm; minimum of two views | Used when concomitant distal upper-extremity injury is suspected. |