GEN 1.7-46 UNITED KINGDOM AIP27 Jun 2013 GEN 1.7 DIFFERENCES FROM ICAO STANDARDS, RECOMMENDED PRACTICES AND PROCEDURES (continued)
Chapter 6 Separation in the vicinity of Aerodromes 6.3.2.4
When a departing aircraft on a SID is cleared to climb to a level higher than the initially cleared level or the level(s) specified in a SID, the aircraft shall climb directly to the cleared level, unless the SID vertical restrictions are reiterated as part of the clearance.
Therefore in ICAO (rest of the world) the level restrictions remain unless specifically cancelled.