Summary & Overview
CPT 72120: Lumbosacral Spine Radiographs, Flexion/Extension Views
CPT code 72120 represents a focused diagnostic radiographic exam of the lumbosacral spine performed with the patient in bending (flexion or extension) to obtain two or three views. This code is used to assess spinal alignment, detect fractures, and evaluate for bony lesions such as metastatic disease. Nationwide, it is a routine imaging study in musculoskeletal and spine care pathways and is commonly ordered by primary care, emergency, and orthopedic providers when dynamic assessment of lumbosacral stability or curvature is required.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a clinical and billing overview of CPT code 72120, including typical sites of service, common use cases, and the clinical rationale for bending views. Readers will find benchmarks for utilization and coverage themes across major payers where available, an outline of coding context relative to other spine imaging codes, and practical policy considerations that affect authorization and claims adjudication. Data limitations where input was not provided are noted as "Data not available in the input." The content is intended for national audiences involved in clinical operations, revenue cycle, and payer policy who need a concise reference for CPT code 72120.
Billing Code Overview
CPT code 72120 describes a diagnostic radiological procedure: a two- or three-view lumbosacral spine study performed with the patient in a bending position. The examination is used to evaluate the lumbosacral spine for abnormal curvature, vertebral fracture, or osseous malignancy.
Service type: Diagnostic radiology — plain radiographic study of the lumbosacral spine with flexion/extension (bending) views.
Typical site of service: Hospital radiology department, outpatient imaging center, or freestanding radiology clinic.
Data not available in the input for associated taxonomies, specific ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient presents to the radiology department with progressive low back pain and intermittent radicular symptoms after a recent ground‑level fall. The clinician documents focal lumbar tenderness and suspected structural abnormality such as increased lumbosacral curvature, possible compression fracture, or metastatic disease. The ordering provider requests a dynamic lumbosacral radiographic series to evaluate spinal alignment and stability. The patient checks in at an outpatient radiology clinic or hospital outpatient imaging suite. The radiologic technologist explains the procedure, obtains weight‑bearing and bending views (two or three views with the patient in bending positions), and acquires images per protocol. The interpreting radiologist reviews the procedure and images, documents findings (alignment, fractures, focal osseous lesions, degenerative changes), and issues a final report to the referring clinician. Typical payors for billing include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare. The service commonly uses facility place of service codes for outpatient hospital or freestanding imaging center and professional component billing for the radiologist interpretation when applicable.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing the interpretation by the radiologist separate from the facility technical component |