High Private Use Surrogates Unicode Block

High Private Use Surrogates is a reserved set of code values specifically designated for private use within the UTF-16 encoding scheme, allowing applications or organizations to assign their own unique characters or symbols without conflicting with standardized Unicode assignments. These surrogate values function as the high half of a pair, pairing with low surrogates to represent supplementary characters, but they are never meant to appear alone in valid text. Because their meaning is entirely implementation-defined, software must rely on contextual agreements to interpret them consistently, and interchange between different systems may lead to data loss or misinterpretation if not carefully managed.