Browse by code chart: PUA-42
The Unicode Standard v. 5.1 has no precomposed characters with both diaeresis and dot below. The present subrange contains one precomposed character with this combination. The Unicode Standard advises encoding characters of this type as a sequence of the baseline character and the COMBINING DIAERESIS (0308) and the COMBINING DOT BELOW (0323), and this way of encoding has been given as an alternative for the character below.