33420 Revision of mitral valve
Also known as: mitral valve revision, mitral valve repair open
Revision of mitral valve via open surgical approach, including repair or reconstruction.
In Plain Language
surgically repairing mitral valve
Clinical Context
Used for mitral stenosis or regurgitation when repair can preserve valve function.
RVU Breakdown
| Work RVU | 25.15 |
| Total RVU | 25.15 |
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 25.15, this code ranks in the 89th percentile among Surgery codes — 3.1x the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 33420?
CPT 33420 (Revision of mitral valve) is a Surgery code. Revision of mitral valve via open surgical approach, including repair or reconstruction.
What is the wRVU value for CPT 33420?
The work RVU for CPT 33420 is 25.15. This code is primarily used by Cardiac Surgery, Cardiothoracic Surgery. It has a 90-day global period.
When is CPT 33420 used?
Used for mitral stenosis or regurgitation when repair can preserve valve function.
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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.