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    v1.0.30
    OpenPayerBilling CodesEndoscopy Procedures on the AnusCPT cpt-46601-diagnostic-anoscopy-enhanced-visualization
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    CPT 46601: Diagnostic Anoscopy with Enhanced Visualization

    Medicare pays $172 on average nationally for this procedure.

    CPT code 46601 describes a diagnostic anoscopy procedure in which the provider examines the anus using a small tubular anoscope with high-resolution magnification and chemical enhancement to improve visualization; the service may include collection of specimens by brushing or washing. Service type: diagnostic endoscopic/anoscopic examination. Typical site of service: outpatient clinic or office-based procedure room, ambulatory surgery center, or endoscopy suite. Diagnostic anoscopy with enhanced visualization and specimen collection is used to evaluate anorectal complaints and to obtain cytologic or washings for laboratory analysis.

    For related coverage guidance, see recent payer policy updates: Surgical Procedures, Outpatient Surgical Procedures - Site of Service, Site of Service Ambulatory Service Center (ASC) Select — Surgical or Diagnostic Procedures in Adults.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 52-year-old patient presents to an outpatient colorectal clinic with complaints of anal bleeding and intermittent pain. The clinician performs a diagnostic anoscopy using a small tubular anoscope with high-resolution magnification and chemical staining to enhance mucosal visualization. During the visit the provider inspects the anal canal and distal rectum, documents findings (internal hemorrhoids, fissure, suspicious lesion), and collects cytology brushings or washings for laboratory analysis when indicated. The typical workflow includes pre-procedure consent and history, positioning in the left lateral or lithotomy position, application of topical anesthetic or lubricant, insertion of the anoscope, targeted inspection with augmented visualization, specimen collection as needed, removal of the anoscope, and post-procedure instructions. Typical site of service is an outpatient clinic or ambulatory surgery center. The procedure is diagnostic in nature and may precede therapeutic procedures such as biopsy, excision, or anoscopic-directed treatment when indicated.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    46900Excision of hemorrhoids, internal and external; simple (e.g., with banding, with cautery)Therapeutic procedure that may follow diagnostic anoscopy when symptomatic hemorrhoids are identified.
    45121Anoscopy with biopsy, single or multipleDiagnostic step if tissue biopsy is indicated after anoscopic visualization; provides histologic diagnosis.
    45330Flexible sigmoidoscopy, diagnostic, with or without collection of specimen by brushing or washingExtends examination proximally when lesions are suspected beyond the anal canal; may be performed same day in clinic.
    49505Repair of inguinal hernia, initial, tension-free (mesh)Data not available in the input.
    44970Appendectomy, open, not including incidental appendectomyData not available in the input.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207RH0000X
    207V00000X
    208800000X
    207L00000X
    207ZF0201X
    261QC0050X
    225XG0600X
    207RE0101X

    Related Payer Policy Updates

    Specialty: General Surgery1 / 3

    10 rows

    PolicyPayerEffective Date
    Surgical ProceduresUnitedHealthcare2026-09-01
    Outpatient Surgical Procedures - Site of ServiceUnitedHealthcare2026-09-01
    Site of Service Ambulatory Service Center (ASC) Select — Surgical or Diagnostic Procedures in AdultsPremera Bluecross2026-09-01
    Site of Service Ambulatory Surgical Center (ASC) Select — Surgical or Diagnostic Procedures in AdultsPremera Bluecross2026-09-01
    Site of Service Ambulatory Service Center (ASC) SelectPremera Bluecross2026-09-01
    Site of Service Ambulatory Surgical Center (ASC) Select — Site of Service for Ambulatory Surgical Procedures (ASC Select)Premera Bluecross2026-09-01
    Site of Service Ambulatory Service Center (ASC) SelectPremera Bluecross2026-09-01
    Outpatient Surgical Procedures - Site of Servicesierra health and life2026-08-01
    Medical Necessity Guidelines — Inpatient Surgical CareMass General Brigham Health Plan2026-08-01
    Ambulatory Surgery Center (ASC) - Site of Care PolicyKaiser Permanente2026-08-01

    Related Codes

    CPT-46600-ANOSCOPY-WITH-ANAL-CANAL-SAMPLING

    CPT 46600: Anoscopy with Anal Canal Specimen Collection

    CPT-46604-ANOSCOPY-WITH-ANAL-DILATION

    CPT 46604: Anoscopy with Anal Dilation

    CPT-46606-ANOSCOPY-WITH-BIOPSY

    CPT 46606: Anoscopy with Biopsy, Anal Canal Tissue Sampling

    CPT-46607-ANOSCOPY-WITH-MAGNIFICATION-CHEMICAL-ENHANCEMENT-BIOPSY

    CPT 46607: Anoscopy with High-Resolution Magnification and Biopsy

    CPT-46608-ANOSCOPY-WITH-ANAL-FOREIGN-BODY-REMOVAL

    CPT 46608: Anoscopy with Removal of Anal Foreign Body

    CPT-46610-ANOSCOPY-SINGLE-LESION-REMOVAL-HOT-BIOPSY-BIPOLAR-CAUTERY

    CPT 46610: Anoscopy with Removal of Single Lesion

    CPT-46611-ANOSCOPY-SNARE-POLYPECTOMY

    CPT 46611: Anoscopy with Removal of Single Polyp/Tumor

    CPT-46612-ANOSCOPY-MULTIPLE-LESION-REMOVAL

    CPT 46612: Anoscopy with Removal of Multiple Lesions

    CPT-46614-ANOSCOPY-WITH-HEMOSTASIS

    CPT 46614: Anoscopy with Control of Bleeding

    CPT-46615-ANOSCOPY-LESION-EXCISION

    CPT 46615: Anoscopy with Excision of Anorectal Lesion

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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