21 CFR 870.1025
Arrhythmia detector and alarm (including ST-segment measurement and alarm)
21 CFR 870.1025 is the regulation titled “Arrhythmia detector and alarm (including ST-segment measurement and alarm)” in 21 CFR Part 870, Cardiovascular Devices. Since 2021, 1 FDA warning letter has cited it.
- Letters citing it
- 1 since 2021
- Jan 1 to Oct 30, 2026
- 1 against 0 on the same dates in 2025
- Most often cited with
- 21 CFR 807.81, in 1 letter
- Closed out
- 0% of these letters have a published close-out
Letters citing it, by year issued
It is a medical device letter. 2026 runs to Oct 30, 2026. Pick a year to see its letters.
- 02021
- 02022
- 02023
- 02024
- 02025
- 12026
The regulation
Read the text of 21 CFR 870.1025 (eCFR, as of Sep 1, 2026)
(a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to produce a visible or audible signal or alarm when atrial or ventricular arrhythmia, such as premature contraction or ventricular fibrillation, occurs.
(b) Classification. Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Arrhythmia Detector and Alarm” will serve as the special control. See § 870.1 for the availability of this guidance document.
[68 FR 61344, Oct. 28, 2003]
Text from eCFR as of Sep 1, 2026.
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