3GPP 38.300 v19.3.0 — the document's own text
Annex D SPID ranges and mapping of SPID values to cell reselection and inter-RAT/inter frequency handover priorities
The Subscriber Profile ID for RAT/Frequency Priority (SPID) values are defined in Annex I of TS 36.300 [2].
From these SPID reference values, the SPID=253 also applies for 5GC.
In addition, the SPID values defined below applies for 5GC.
SPID = 252
Table D-1: gNB local configuration in idle and connected mode for SPID = 252