Over at https://www.facebooks.com/kanjirecog I have an image of the desktop applet that I use to grab a character using the Unicode value not in the Kodansha Kanji Learner's Dictionary.
Jisho.org will also allow you to search using that value.
My explanation is over at http://lcurlr.blogspot.ca/2014/08/flashcard-conning-kanji-course.html.
Having the Unicode value is great, especially with the 2013 Kodansha course book by Conning being indexed to the 2nd Ed. of Halpern's KLD.