Summary & Overview
CPT 0184T: Transanal Endoscopic Microsurgical Excision of Rectal Tumor
CPT code 0184T represents transanal endoscopic microsurgical excision of a rectal tumor performed through a proctoscope with the goal of preserving the anus. This procedure matters nationally as a specialized, organ-preserving surgical option for select rectal lesions that can reduce morbidity compared with more extensive resections. Payers and clinicians track utilization and coverage because the procedure involves specialized equipment, perioperative planning, and potential implications for surgical setting and follow-up care. Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will get a concise clinical and billing overview of the service, typical sites of care, common modifiers associated with reporting, and where to find related coding information. The summary outlines clinical context for use of transanal endoscopic microsurgery, considerations for facility billing versus physician professional services, and expected documentation elements that support medical necessity. Data not available in the input is noted where applicable, and the publication focuses on national policy and billing implications rather than state-specific rules or individualized clinical recommendations.
Billing Code Overview
CPT code 0184T describes a surgical procedure to identify and remove a rectal tumor using a proctoscope while preserving the anus. The procedure is performed via a transanal endoscopic microsurgical approach, which allows local excision of rectal lesions with direct visualization through the anus.
Service Type: Surgical — transanal endoscopic microsurgery
Typical Site of Service: Ambulatory surgical center or hospital operating room with proctoscopy/endoscopic equipment
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient presents with a solitary, well-circumscribed rectal lesion located 6–12 cm from the anal verge identified on colonoscopy and confirmed by biopsy as a benign adenoma or early-stage malignant lesion amenable to local excision. Preoperative evaluation includes history and physical, focused anorectal exam, endorectal ultrasound or MRI to assess depth of invasion, and anesthesia evaluation. The procedure, coded as 0184T, is performed in an operating room or ambulatory surgical center under general or regional anesthesia with the patient in lithotomy or prone jackknife position. The surgeon uses a proctoscope and transanal endoscopic microsurgical (TEMS) instrumentation to visualize, sharply dissect, and excise the lesion with full-thickness or partial-thickness margins as indicated, preserving the anal sphincter and anorectal continuity. Hemostasis is achieved, and the rectal wall defect is closed primarily when appropriate. Postoperative workflow includes recovery in PACU, short inpatient observation if indicated for comorbidities or complications, pathology review of the specimen, and scheduled outpatient follow-up for wound assessment and surveillance colonoscopy per oncologic or adenoma guidelines.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default/No modifier | Use when no special billing modifier applies to the service. |