Summary & Overview
CPT 44392: Colonoscopy via Colostomy with Excision of Lesion(s)
CPT code 44392 captures a colonoscopic excision of one or more abnormal masses performed through a previously created colostomy stoma. Nationally, this code represents a specialized endoscopic intervention used when standard transanal colonoscopy is not feasible due to prior colectomy and colostomy formation. The procedure has clinical importance for surveillance, diagnosis, and treatment of residual colonic pathology, and for obtaining specimens for histopathologic evaluation.
Key payers discussed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of clinical intent and typical settings, alongside payer coverage context and commonly applied modifiers. The publication outlines benchmarking elements and relevant policy considerations that affect coding, claims adjudication, and site-of-service designation for colonoscopic procedures performed via colostomy access.
The content provides practical clarity on the code’s clinical scope, where the service is commonly delivered (ambulatory surgical center or hospital outpatient department), and what documentation elements are central to claims processing. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 44392 describes a colonoscopic procedure performed through a previously created colostomy stoma to inspect the remaining portion of the colon. During the procedure a colonoscope, a tubular instrument with a light source and camera, is inserted through the colostomy opening. One or more abnormal masses or growths are removed with an instrument that grasps, excises, and cauterizes the lesion, and the specimen is sent to a laboratory for analysis.
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Service type: Endoscopic colon evaluation with removal of one or more lesions via colostomy access
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Typical site of service: Ambulatory surgical center or hospital outpatient department
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of sigmoid colectomy and a permanent colostomy presents for surveillance and evaluation of new bleeding and change in stoma output. The colorectal surgeon schedules a stoma colonoscopy to inspect the remaining colon through the existing colostomy stoma, evaluate mucosa, and remove a suspicious polyp found on prior imaging. The procedure is performed in an outpatient endoscopy suite under monitored anesthesia care with the patient in the supine position. The surgeon introduces a colonoscope through the stoma, advances to visualize the colonic mucosa, identifies a 1.5 cm sessile polyp in the descending colon, performs snare polypectomy with electrocautery, achieves hemostasis, and sends the specimen to pathology for histologic evaluation. Postprocedure recovery includes monitoring for bleeding or perforation, discharge with stoma care instructions, and pathology follow-up.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Appended when the service represents the physician s usual, uncomplicated service | Use when the procedure is performed as planned without unusual procedural issues |
22 | Increased procedural services |