510(k) Report

FDA product code · Immunology

Aquaporin-4 Autoantibody

PNIClass II21 CFR 866.5665510(k) required2 decisions since 20160 recalls

2 FDA decisions since 2016. No recall names this code.

For the determination of autoantibodies to Aquaporin-4 in human serum and plasma. The test may be useful as an aid in the diagnosis of Neuromyelitis Optica (NMO) and Neuromyelitis Optica Spectrum Disorders (NMOSD). The test is not to be used alone and is to be used in conjunction with other clinical and radiological (MRI) laboratory findings.

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026 Download the data (CSV)

FIG. A — Illustration, immunology panel

Twenty years of PNI 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 · PNI

2in 2016

2016: 2
2007high 2 (2016) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · PNI

Too few PNI 510(k)s in any year since 2007 to give a median.

Recalls per year · PNI

No recall names PNI since 2007.

Adverse event reports per year · PNI

No MAUDE report names PNI since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20162—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20240—00
20250—00
20260—0—
FIG. 1 — PNI by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

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