77073 Bone length studies
Also known as: Bone length study, Limb length measurement
Radiographic measurement of bone length and assessment of skeletal growth.
In Plain Language
X-ray to measure bone growth and length
Clinical Context
Used to evaluate limb length discrepancy, assess growth in children with suspected dysplasia, or monitor progression of skeletal abnormalities.
RVU Breakdown
| Work RVU | 0.25 |
| Total RVU | 0.25 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Radiology codes require a written order, clinical indication, and a formal interpretation report. The professional component (modifier -26) and technical component (modifier -TC) may be billed separately.
How This Code Compares
With a work RVU of 0.25, this code ranks in the 16th percentile among Radiology codes — 3.2x below the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 77073?
CPT 77073 (Bone length studies) is a Radiology code. Radiographic measurement of bone length and assessment of skeletal growth.
Who uses CPT code 77073?
CPT 77073 is used by Radiology, Orthopedic Surgery, Pediatrics. Used to evaluate limb length discrepancy, assess growth in children with suspected dysplasia, or monitor progression of skeletal abnormalities.
When is CPT 77073 used?
Used to evaluate limb length discrepancy, assess growth in children with suspected dysplasia, or monitor progression of skeletal abnormalities.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.