SMA extension of stent due to endoleak seen on postop CTA

Please note this question was answered in 2017. The coding advice may or may not be outdated.

Question:

"Patient is status-post thoracic endovascular stent graft without coverage of the left subclavian artery with distal extension for chronic dissection of thoracic aorta (Oct 2016) and percutaneous two vessel fenestrated-EVAR to the celiac and SMA with proximal extension of abdominal aortic endograft for AAA (Jan 2017). Postop CTA showed stable size of the thoracoabdominal aorta false lumen/aneurysm sac, but with dreased contrast filling, which is likely type II endoleak. Procedure: A 7x22mm iCast stent was advanced into the SMA an positioned distal to the existing stent to extent the stent." Would you code this as an embolization (37242) or stent placement (37236)?

Question ID: 8930
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