FDA product code · Anesthesiology
Continuous, Ventilator, Home Use
7 FDA decisions since 2003. 510(k) reviews decided 2021–2025 took a median of 426 days (half between 414 and 439). 6 recalls name this code, 1 of them Class I. The most-cited predicate is K021981, named by 4 later devices.
This product code was needed for the home use indication. CBK is not a tracked device and NOU is a tracked device.
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly Download the data (CSV)
Twenty years of NOU at a glance: how often FDA decides these devices, how long 510(k) reviews take, how often they are recalled, and how many adverse event reports name the code.
FDA decisions per year · NOU
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NOU
Too few NOU 510(k)s in any year since 2007 to give a median.
Recalls per year · NOU
1in 2023
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · NOU
932in 2025
MAUDE reports naming product code NOU, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 1 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 1 |
| 2013 | 1 | — | 0 | 5 |
| 2014 | 0 | — | 0 | 112 |
| 2015 | 0 | — | 0 | 1,217 |
| 2016 | 1 | — | 0 | 1,160 |
| 2017 | 0 | — | 0 | 175 |
| 2018 | 0 | — | 0 | 41 |
| 2019 | 0 | — | 0 | 37 |
| 2020 | 0 | — | 0 | 67 |
| 2021 | 1 | — | 0 | 248 |
| 2022 | 0 | — | 0 | 336 |
| 2023 | 0 | — | 1 | 1,259 |
| 2024 | 0 | — | 0 | 817 |
| 2025 | 1 | — | 0 | 932 |
| 2026 | 0 | — | 1 (1) | — |
Planning a device in NOU? A 510(k) Report ranks candidate predicates in this code by lineage, citations and recall history, with the review-time outlook.
See the 510(k) ReportRelated product codes
Other codes under 21 CFR 868.5895.