510(k) Report

FDA product code · Hematology

Platelet Factor 4 Radioimmunoassay

LCOClass II21 CFR 864.7695510(k) required13 decisions since 19867 recalls

13 FDA decisions since 1986. 510(k) reviews decided 2021–2025 took a median of 90 days (half between 90 and 90). 7 recalls name this code, 2 of them Class I. The most-cited predicate is K983379, named by 3 later devices.

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, hematology panel

Twenty years of LCO 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 · LCO

1in 2025

2007: 22016: 12017: 12020: 22025: 1
2007high 2 (2007) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LCO

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

Recalls per year · LCO

3so far in 2026, the most since 2007

2011: 22013: 12014: 12026 (partial year): 3, 2 Class I
2007high 3 (2026) · low 0 (2007)2026

Class I (2 since 2007) Class II/III not classified

Adverse event reports per year · LCO

11in 2025

2016: 22019: 42020: 12024: 22025: 11
2007high 11 (2025) · low 0 (2007)2025

MAUDE reports naming product code LCO, 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
20072—00
20080—00
20090—00
20100—00
20110—20
20120—00
20130—10
20140—10
20150—00
20161—02
20171—00
20180—00
20190—04
20202—01
20210—00
20220—00
20230—00
20240—02
20251—011
20260—3 (2)—
FIG. 1 — LCO by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

Planning a device in LCO? 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