510(k) Report

510(k) · Cleared

Cleared

Zio® monitor (DFG0001)

K243650510(k) TraditionalCleared Aug 15, 2025262-day reviewClass II21 CFR 870.2800

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

iRhythm Technologies, Inc. · DSH Recorder, Magnetic Tape, Medical

Cleared on Aug 15, 2025 as substantially equivalent to K202359 (iRhythm Technologies, Inc., 2021) after a 262-day review. Its family tree reaches back 2 generations to 2012.

Decided
Aug 15, 2025
Review
262 days
Class
Class II
Product code
DSH
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K121319 (2012). No later device cites it as a predicate yet.

  1. Root · 2 generations backK121319 Zio PatchiRhythm Technologies, Inc. · 2012
  2. 1 generation backK202359 Zio MonitoriRhythm Technologies, Inc. · 2021
  3. This deviceK243650 Zio® monitor (DFG0001)iRhythm Technologies, Inc. · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K121319Zio PatchiRhythm Technologies, Inc.2012—
−1K202359Zio MonitoriRhythm Technologies, Inc.2021—
0 (this device)K243650Zio® monitor (DFG0001)iRhythm Technologies, Inc.2025—
FIG. 1 — Lineage of K243650, 2012–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in DSH? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new DSH device

  1. #1 K260157 LifeLens Physiological Monitorscore 17.9 · 22 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K202359Zio Monitor
Summary page 6
…Traditional 510(k): 510(k) Summary III. Predicate Devices The following predicate device has been selected: − iRhythm Technologies, Inc. Zio® monitor[K202359] The following reference device has been selected: − iRhythm Technologies, Inc. Zio AT® Device [K240177] IV.…
iRhythm Technologies, Inc.2021—
†K240177Zio AT® device (A100A1001)iRhythm Technologies, Inc.2024—

Also cleared against K202359: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 13 years and passes through 1 company; a new generation was cleared every 8.8 years on median.
  • None of the 2 ancestors has a recall.
  • 1 other device also cites its predicate K202359.

How does its category compare?

All DSH devices

DSH Recorder, Magnetic Tape, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · DSH

4in 2025

2007: 12008: 12009: 32010: 22011: 62012: 22013: 22014: 12015: 22016: 22017: 32018: 32019: 32020: 42021: 42022: 42023: 62024: 22025: 42026 (partial year): 2
2007high 6 (2011) · low 1 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DSH

205in 2025

2009: 84 days median2011: 64 days median2017: 91 days median2018: 269 days median2019: 30 days median2020: 122 days median2021: 263 days median2022: 427 days median2023: 198 days median2025: 205 days median
2007high 427 (2022) · low 30 (2019)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · DSH

No recall names DSH since 2007.

Adverse event reports per year · DSH

213in 2025

2009: 12010: 82011: 32012: 12013: 22014: 32015: 82016: 62017: 312018: 302019: 762020: 912021: 1132022: 462023: 652024: 882025: 213
2007high 213 (2025) · low 0 (2007)2025

MAUDE reports naming product code DSH, 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
20071—00
20081—00
200938401
20102—08
201166403
20122—01
20132—02
20141—03
20152—08
20162—06
2017391031
20183269030
2019330076
20204122091
202142630113
20224427046
20236198065
20242—088
202542050213
20262—0—

What is it indicated for?

The Zio monitor is a prescription-only, single-use, ECG monitor that continuously records data for up to 14 days.

It is indicated for use on patients, 18 years and older, who may be asymptomatic or who may suffer from transient symptoms such as palpitations, shortness of breath, dizziness, lightheadedness, pre-syncope, syncope, fatigue, or anxiety.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K243650: Zio® monitor (DFG0001).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K243650

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026