CPT code 37183 represents endovascular revision of a transjugular intrahepatic portosystemic shunt (TIPS) involving removal of a previously placed shunt and insertion of a new stent into the artificial channel between the portal vein and a hepatic vein. This service is clinically significant for patients with portal hypertension who develop shunt occlusion, thrombosis, or stenosis and often requires advanced interventional radiology resources in hospital settings. Nationally, the procedure matters because it affects access to specialty care, resource utilization in inpatient and outpatient hospital environments, and payer coverage policies for complex vascular interventions.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise review of the clinical context for TIPS revision, typical sites of service, and the common billing and coding considerations associated with CPT code 37183. The publication summarizes payer coverage tendencies, common modifiers used with this service (data not available in the input for specific payer rules), and the policy and billing implications that organizations should consider when submitting claims for shunt revision with stent placement. The piece also highlights where data are not available in the input, and points to the clinical indications prompting the procedure to help align documentation with coding.