MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS INC. ATELLICA IM; ATELLICA IM ENHANCED ESTRADIOL (EE2)

Model Number	N/A
Medical Device Problem Code	High Test Results (2457)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/28/2026
Type of Reportable Event	Malfunction
Event or Problem Description
The customer reported observation of elevated atellica im enhanced estradiol (ee2) results which were discordant relative to repeat testing when using lot 106.The customer performed a review of ee2 results as a part of routine reset.During this review, initial elevated results were obtained for five (5) patient samples in question.The elevated results were reported to the physician(s) but weren't questioned.Subsequently, the same samples were retested on alternate analyzer(s) which produced lower results.The lower results were considered correct based on the clinical assessment.However, a corrected report was issued to the physician for only one patient sample.There are no known reports of patient intervention or adverse health consequences due to this event.
Additional Manufacturer Narrative
A customer from outside the united states reported observation of elevated atellica im enhanced estradiol (ee2) results which were discordant relative to repeat testing.The interpretation of results section of the atellica im enhanced estradiol (ee2) instructions for use (ifu) states the following: "results of this assay should always be interpreted in conjunction with the patient¿s medical history, clinical presentation, and other findings." siemens is evaluating the event.

• Brand Name: ATELLICA IM
• Common Device Name: ATELLICA IM ENHANCED ESTRADIOL (EE2)
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 511 benedict ave; tarrytown NY 10591
• Manufacturer (Section G): SIEMENS HEALTHCARE DIAGNOSTICS INC.; registration #: 1219913; 333 coney st.; east walpole MA 02032
• Manufacturer Contact: varsha joshi ; pritech park sez, block 11; sarjapur outer ring road; karnataka 56010-3 ; IN 560103 ; 870577433
• MDR Report Key: 24850206
• Report Number: 1219913-2026-00077
• Device Sequence Number: 14865810
• Product Code: CHP
• UDI-Device Identifier: 00630414598857
• UDI-Public: (01)00630414598857(10)43423106(17)260301
• Combination Product (Y/N): N
• Initial Reporter Country: BR
• PMA/510(K) Number: EXEMPT
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 05/13/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 03/01/2026
• Device Model Number: N/A
• Device Catalogue Number: 10995561
• Device Lot Number: 43423106
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/16/2026
• Supplement Date Received by Manufacturer: 04/17/2026
• Initial Report FDA Received Date: 04/11/2026
• Supplement Report FDA Received Date: 05/13/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/01/2025
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown