21184 Reconstruct cranial bone
Also known as: extensive cranial reconstruction
Reconstruction of cranial bone with maximum complexity, involving extensive defects, multiple surgical stages, or complex reconstructive approaches.
In Plain Language
Extensive skull reconstruction; Major brain protection surgery
Clinical Context
Used for the most extensive cranial defects requiring complex surgical planning and potentially multiple operative stages.
RVU Breakdown
| Work RVU | 37.65 |
| Total RVU | 37.65 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 90-day global period, which includes the day of the procedure, 1 day preoperative, and 90 days of postoperative care. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 37.65, this code ranks in the 96th percentile among Surgery codes — 4.7x the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 21184?
CPT 21184 (Reconstruct cranial bone) is a Surgery code. Reconstruction of cranial bone with maximum complexity, involving extensive defects, multiple surgical stages, or complex reconstructive approaches.
What is the wRVU value for CPT 21184?
The work RVU for CPT 21184 is 37.65. This code is primarily used by Neurosurgery, Craniofacial Surgery, Orthognathic Surgery. It has a 90-day global period.
When is CPT 21184 used?
Used for the most extensive cranial defects requiring complex surgical planning and potentially multiple operative stages.
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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.