FDA product code · Radiology · Class 2
KXK: Source, Brachytherapy, Radionuclide
KXK is FDA's product code for "Source, Brachytherapy, Radionuclide": a Class 2 device classified under 21 CFR 892.5730, reviewed by the Radiology panel. FDA flags it as an implant.
510(k) review time for KXK
Across 10 510(k) clearances under KXK decided from 2018-01-01 to 2026-10-06, the median was 139 days from FDA receipt to decision. Half took between 128 and 164 days, and 80% were decided within 192 days. These are past clearances, not a forecast for a new submission.
| Fastest | 30 |
|---|---|
| 25th percentile | 128 |
| Median | 139 |
| 75th percentile | 164 |
| 80th percentile | 192 |
| 90th percentile | 297 |
| Slowest | 300 |
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.
KXK in the public FDA record
| 510(k) clearances, all years | 151 |
|---|---|
| Establishment listings | 97 |
| GUDID device identifiers | 946 |
Counts of records, not of devices or events. Adverse event reports for KXK are in MAUDEScope, as counts with the query shown: MAUDE has no denominator, so a report count is not a rate and does not show that a device caused an event.
FDA-recognized standards that cite KXK
No FDA recognized consensus standard cites KXK by product code. Horizontal standards such as biocompatibility, sterilization and software standards can still apply.
Source: FDA Recognized Consensus Standards, snapshot of 2026-09-01. Search them all in the Consensus Standards Lookup.