| Type of subheading | Number of symbols | Range of characters |
| Non-European and historic Latin | 64 various letters for use in Zhuang, Americanist phonetic transcription, African languages, and other Latin script alphabets. | U+0180 to U+01BF |
| African letters for clicks | Four African letters for clicks are used in Khoisan orthography. | U+01C0 to U+01C3 |
| Croatian digraphs matching Serbian Cyrillic letters | Three sets of three case mappings (lower case, upper case, and title case) of Latin digraphs used for compatibility with Cyrillic texts. | U+01C4 to U+01CC |
| Pinyin diacritic-vowel combinations | Sixteen diacritic-vowel combinations which are used to represent the standard Mandarin Chinese vowel sounds with tone marks. | U+01CD to U+01DC |
| Phonetic and historic letters | 35 Phonetic and historic letters which are largely various standard and variant Latin letters with diacritic marks. | U+01DD to U+01FF |
| Additions for Slovenian and Croatian | 24 Additions for Slovenian and Croatian are all standard Latin letters with unusual diacritics, like the double grave and inverted breve. | U+0200 to U+0217 |
| Additions for Romanian | 4 characters that were erroneously unified as having a cedilla, when they have a comma below. | U+0218 to U+021B |
| Miscellaneous additions | 39 characters of various description and origin. | U+021C to U+0242 |
| Additions for Livonian | 10 letters with diacritics for writing the Livonian language. | U+0243 to U+024C |
| Additions for Sinology | Three lowercase letters with curls used in the study of classical Chinese language. | U+024D to U+024F |