40840 Reconstruction of mouth
Also known as: mouth reconstruction, oral cavity reconstruction, lip reconstruction
Surgical reconstruction of the oral cavity including the lips and mouth structures using tissue grafts or flaps.
In Plain Language
rebuilding the mouth; oral tissue repair; mouth surgery
Clinical Context
Used for significant defects of the mouth or lips resulting from trauma, cancer resection, congenital defects, or burn injuries. Involves use of grafts or local/regional flaps.
RVU Breakdown
| Work RVU | 8.92 |
| Total RVU | 8.92 |
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 8.92, this code ranks in the 54th percentile among Surgery codes — 1.1x the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 40840?
CPT 40840 (Reconstruction of mouth) is a Surgery code. Surgical reconstruction of the oral cavity including the lips and mouth structures using tissue grafts or flaps.
What is the wRVU value for CPT 40840?
The work RVU for CPT 40840 is 8.92. This code is primarily used by Oral and Maxillofacial Surgery, Plastic Surgery, Head and Neck Surgery. It has a 90-day global period.
When is CPT 40840 used?
Used for significant defects of the mouth or lips resulting from trauma, cancer resection, congenital defects, or burn injuries. Involves use of grafts or local/regional flaps.
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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.