Editing Han unification (section)

==Unicode ranges==
{{main|CJK Unified Ideographs}}
Ideographic characters assigned by Unicode appear in the following blocks:

*[[CJK Unified Ideographs (Unicode block)|CJK Unified Ideographs]] (4E00–9FFF) (Otherwise known as URO, abbreviation of Unified Repertoire and Ordering)<ref>{{cite web|url=https://ccjktype.fonts.adobe.com/2012/09/uro.html|title=URO|website=ccjktype.fonts.adobe.com}}</ref>
*[[CJK Unified Ideographs Extension A]] (3400–4DBF)
*[[CJK Unified Ideographs Extension B]] (20000–2A6DF)
*[[CJK Unified Ideographs Extension C]] (2A700–2B73F)
*[[CJK Unified Ideographs Extension D]] (2B740–2B81F)
*[[CJK Unified Ideographs Extension E]] (2B820–2CEAF)
*[[CJK Unified Ideographs Extension F]] (2CEB0–2EBEF)
*[[CJK Unified Ideographs Extension G]] (30000–3134F)
*[[CJK Unified Ideographs Extension H]] (31350–323AF)
*[[CJK Unified Ideographs Extension I]] (2EBF0–2EE5F)
*[[CJK Compatibility Ideographs]] (F900–FAFF) (the twelve characters at FA0E, FA0F, FA11, FA13, FA14, FA1F, FA21, FA23, FA24, FA27, FA28 and FA29 are actually "unified ideographs" not "compatibility ideographs")

Unicode includes support of CJKV radicals, strokes, punctuation, marks and symbols in the following blocks:
*[[CJK Radicals Supplement]] (2E80–2EFF)
*[[CJK Strokes (Unicode block)|CJK Strokes]] (31C0–31EF)
*[[CJK Symbols and Punctuation]] (3000–303F)
*[[Ideographic Description Characters]] (2FF0–2FFF)

Additional compatibility (discouraged use) characters appear in these blocks:
*[[CJK Compatibility]] (3300–33FF)
*[[CJK Compatibility Forms]] (FE30–FE4F)
*[[CJK Compatibility Ideographs]] (F900–FAFF)
*[[CJK Compatibility Ideographs Supplement]] (2F800–2FA1F)
*[[Enclosed CJK Letters and Months]] (3200–32FF)
*[[Enclosed Ideographic Supplement]] (1F200–1F2FF)
*[[Kangxi Radicals (Unicode block)|Kangxi Radicals]] (2F00–2FDF)
These compatibility characters (excluding the twelve unified ideographs in the CJK Compatibility Ideographs block) are included for compatibility with legacy text handling systems and other legacy character sets. They include forms of characters for vertical text layout and rich text characters that Unicode recommends handling through other means.

===International Ideographs Core===
{{main|International Ideographs Core}}
The International Ideographs Core (IICore) is a subset of 9810 ideographs derived from the CJK Unified Ideographs tables, designed to be implemented in devices with limited memory, input/output capability, and/or applications where the use of the complete ISO 10646 ideograph repertoire is not feasible. There are 9810 characters in the current standard.<ref>{{cite web|url=http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/download_area/iicore_compare_utility.htm|title=OGCIO : Download Area : International Ideographs Core (IICORE) Comparison Utility|website=www.ogcio.gov.hk}}</ref>