FDA product code · Pathology · Class 2

PSY: Whole Slide Imaging System

PSY is FDA's product code for "Whole Slide Imaging System": a Class 2 device classified under 21 CFR 864.3700, reviewed by the Pathology panel.

510(k) review time for PSY

Across 21 510(k) clearances under PSY decided from 2018-01-01 to 2026-10-06, the median was 239 days from FDA receipt to decision. Half took between 95 and 266 days, and 80% were decided within 270 days. These are past clearances, not a forecast for a new submission.

Days from FDA receipt to 510(k) decision, PSY, decisions 2018-01-01 to 2026-10-06 (n = 21)
Fastest30
25th percentile95
Median239
75th percentile266
80th percentile270
90th percentile288
Slowest387

Source: openFDA 510(k) records, snapshot of 2026-10-06 (openFDA data as of 2026-09-28). Compare 510(k) review times across all device types, see every code side by side in the Clearance Timeline Estimator, or browse the clearances themselves in PredicateScope.

FDA-recognized standards that cite PSY

7 FDA recognized consensus standards cite PSY, among them CIE ISO 11664-1:2019; ISO CIE 11664-3 First edition 2019-06; ISO CIE 11664-4 First edition 2019-06. Horizontal standards such as biocompatibility, sterilization and software standards can apply without citing the code.

  • 9-124 CIE ISO 11664-1:2019 — Colorimetry - Part 1: CIE standard colorimetric observers
  • 9-126 ISO CIE 11664-3 First edition 2019-06 — Colorimetry - Part 3: CIE tristimulus values
  • 9-127 ISO CIE 11664-4 First edition 2019-06 — Colorimetry - Part 4: CIE 1976 L*a*b* colour space
  • 9-129 ISO CIE 61966-2-1 First edition 1999-10 — Multimedia systems and equipment - Colour measurement and management - Part 2-1: Colour management - Default RGB colour space - sRGB [Including: Amendment 1 (2003) and Corrigendum 1 (2014)]
  • 9-139 CIE ISO 11664-5:2016 — Colorimetry - Part 5: CIE 1976 L*u*v* colour space and u'v' uniform chromaticity scale diagram
  • 9-147 ISO CIE 11664-2 First edition 2022-08 — Colorimetry - Part 2: CIE standard illuminants
  • 9-148 ISO CIE 11664-6 Second edition 2022-08 — Colorimetry - Part 6: CIEDE2000 colour-difference formula

Source: FDA Recognized Consensus Standards, snapshot of 2026-09-01. Search them all in the Consensus Standards Lookup.

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