I was looking at the transmittal for FY2025 for hospital claims (here) It referred to a "MAC Implementation File" for NTAP. Find it as File 8 here.
File 8 is an Excel spreadsheet with 16 entries. 10 are Breakthrough Device pathway, 2 are QUIP (antibiotic) pathway, 4 are regular pathway. (Having Breakthrough Device status at FDA makes it much easier to get NTAP).
A screenshot (click to enlarge) is below. Generally, devices large and small under BT Pathway get their own alphanumeric ICD procedure (device) code, which looks nothing like an outpatient CPT code.
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| Partial; Click to enlarge; See text for full link |
Fun fact. NTAP devices are said to have passed CMS review for significant additive, and new, clinical impact. But there have been a few historical cases where a device got NTAP payment status yet had trouble getting LCDs to actually allow payments to process.