45905 Dilation of anal sphincter
Also known as: anal sphincter dilation, anal stenosis dilation
Dilation of anal sphincter via manual technique or graduated dilators for relief of anal spasm or stricture.
In Plain Language
stretching or widening of anal opening
Clinical Context
Conservative or office procedure for anal spasm, sphincter dysfunction, or mild anal stenosis.
RVU Breakdown
| Work RVU | 2.29 |
| Total RVU | 2.29 |
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 10-day global period — follow-up visits within 10 days of the procedure are included in the reimbursement. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 2.29, this code ranks in the 16th percentile among Surgery codes — 3.5x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 45905?
CPT 45905 (Dilation of anal sphincter) is a Surgery code. Dilation of anal sphincter via manual technique or graduated dilators for relief of anal spasm or stricture.
What is the wRVU value for CPT 45905?
The work RVU for CPT 45905 is 2.29. This code is primarily used by Colorectal Surgery, General Surgery. It has a 10-day global period.
When is CPT 45905 used?
Conservative or office procedure for anal spasm, sphincter dysfunction, or mild anal stenosis.
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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.