46604 Anoscopy and dilation
Also known as: anoscopy with dilation, anal dilation, anoscopic dilation
Anoscopy with dilation of the anal canal. The anoscope is used to visualize the canal, and dilation is performed to relieve stenosis or improve access.
In Plain Language
looking in the anus and stretching it to widen opening; examination and stretching of anal canal
Clinical Context
Performed for anal stenosis or stricture causing symptoms of difficult bowel movements. Can be therapeutic and diagnostic.
RVU Breakdown
| Work RVU | 1.00 |
| Total RVU | 1.00 |
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 0-day global period, meaning pre- and post-operative E&M visits are billable separately on the same day. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 1.00, this code ranks in the 4th percentile among Surgery codes — 8.0x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 46604?
CPT 46604 (Anoscopy and dilation) is a Surgery code. Anoscopy with dilation of the anal canal. The anoscope is used to visualize the canal, and dilation is performed to relieve stenosis or improve access.
What is the wRVU value for CPT 46604?
The work RVU for CPT 46604 is 1.00. This code is primarily used by Colorectal Surgery.
When is CPT 46604 used?
Performed for anal stenosis or stricture causing symptoms of difficult bowel movements. Can be therapeutic and diagnostic.
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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.