17315 Mohs surgical additional block
Also known as: Mohs additional block, Mohs block add-on
Mohs micrographic surgery additional tissue block beyond initial stages for detailed margin analysis and complete tumor removal verification.
In Plain Language
Extra tissue examination in precision skin cancer surgery
Clinical Context
Used when additional tissue blocks require examination and processing. Applied when margin evaluation requires more extensive histological analysis.
RVU Breakdown
| Work RVU | 0.85 |
| Total RVU | 0.85 |
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 0.85, this code ranks in the 3rd percentile among Surgery codes — 9.4x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 17315?
CPT 17315 (Mohs surgical additional block) is a Surgery code. Mohs micrographic surgery additional tissue block beyond initial stages for detailed margin analysis and complete tumor removal verification.
What is the wRVU value for CPT 17315?
The work RVU for CPT 17315 is 0.85. This code is primarily used by Dermatology, Surgical Oncology, Mohs Surgery.
When is CPT 17315 used?
Used when additional tissue blocks require examination and processing. Applied when margin evaluation requires more extensive histological analysis.
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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.