510(k) Report

FDA product code · Microbiology

System, Mass Spectrometry, Maldi Tof, Microorganism Identification, Cultured Isolates

PEXClass II21 CFR 866.3361510(k) required5 decisions since 20133 recalls

5 FDA decisions since 2013. 3 recalls name this code, 0 of them Class I. The most-cited predicate is DEN130013, named by 3 later devices.

A mass spectrometer system using matrix-assisted laser desorption/ ionization - time of flight (MALDI-TOF) for the identification of microorganisms cultured from human specimens.

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, microbiology panel

Twenty years of PEX 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 · PEX

2in 2017

2013: 22015: 12017: 2
2007high 2 (2013) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · PEX

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

Recalls per year · PEX

3in 2022

2022: 3
2007high 3 (2022) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · PEX

4in 2021

2015: 232016: 482017: 942018: 662019: 1072020: 892021: 4
2007high 107 (2019) · low 0 (2007)2025

MAUDE reports naming product code PEX, not matched to any one device; reports are not rates.

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
20132—00
20140—00
20151—023
20160—048
20172—094
20180—066
20190—0107
20200—089
20210—04
20220—30
20230—00
20240—00
20250—00
20260—0—
FIG. 1 — PEX by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

Planning a device in PEX? 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) Report