Market taxonomy by Types differentiates stent architecture and material science, directly influencing unit price and reimbursement band. Self-expanding metal stents (SEMS)โsubtyped into uncovered, partially-covered and fully-covered variantsโaccounted for ~72 % of 2023 placements; uncovered SEMS remain the reference standard for extra-luminal malignancy due to lower migration risk, while covered versions reduce tissue ingrowth in benign disease but require higher pull-force for removal, a trade-off reflected in a 12-18 % ASP premium. Self-expanding plastic stents (SEPS), introduced to mitigate metal-related perforation, hold single-digit share yet exhibit double-digit CAGR in Europe where cost-effectiveness reviews favor cheaper, temporary alternatives. Biodegradable / drug-eluting platforms, still largely post-market surveillance cohorts, command 4-5ร the ASP of SEMS; revenue contribution is currently <5 % but forecast to reach 10 % by 2028 as outpatient stricture management protocols mature and outpatient DRG codes separate from in-patient oncology bundles.