64643 Chemodenerv 1 extremity 1-4 each
Also known as: extremity chemodenervation additional muscle groups
Chemodenervation of one extremity for each additional set of one to four muscles beyond the first group.
In Plain Language
additional muscle groups extremity relaxation injection
Clinical Context
Used when additional muscle groups in one extremity require treatment.
RVU Breakdown
| Work RVU | 1.19 |
| Total RVU | 1.19 |
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. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 1.19, this code ranks in the 6th percentile among Surgery codes — 6.7x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 64643?
CPT 64643 (Chemodenerv 1 extremity 1-4 each) is a Surgery code. Chemodenervation of one extremity for each additional set of one to four muscles beyond the first group.
What is the wRVU value for CPT 64643?
The work RVU for CPT 64643 is 1.19. This code is primarily used by Neurology, Physiatry.
When is CPT 64643 used?
Used when additional muscle groups in one extremity require treatment.
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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.