Siemens Healthcare Diagnostics, Inc. recalls Atellica IM Homocysteine Calibrator (2 Pack). Siemens Material Number: 10995498

Certain lots of Atellica IM Homocysteine Calibrator and ADVIA Centaur HCY Calibrator do not meet the assay Instructions for Use (IFU) reference interval due to calibrator instability resulting in increased positive bias.

An Urgent Medical Device Correction (UMDC) was mailed to all US affected customers by FedEx, and an Urgent Field Safety Notice (UFSN) was issued to all OUS Siemens reporting sites with affected customers on about 04/15/2025. Customers were instructed to review this letter with your Medical Director to determine the appropriate course of action, including for any previously generated results, discontinue use of and discard the affected devices, and complete and return the Effectiveness Check questionnaire. Customers were also instructed to forward the letter to those who may have received the affected devices.

• FDA enforcement recordOfficial FDA database entry for Z-1821-2025
• FDA device classification · JISOfficial FDA classification for this device type
• CFR regulation · 21 CFR 862.1150The federal regulation governing this device
• FDA recall announcementSearch FDA.gov for the official press announcement
• Find Siemens Healthcare Diagnostics, Inc.Search for the manufacturer's official notice
• News coverageRecent reporting on this recall and manufacturer
• openFDA data recordThe raw JSON record this page is built from

Source: U.S. FDA openFDA device enforcement reports. This summary is informational and may lag or differ from the official record. Always verify against the FDA before acting.