After reviewing the E-code, as I never did in the first place, I also agree the the E-code is correct to use. I'm unsure as to the content of patient encounter so I'm honestly not sure whether my initial code selection holds true. I'm not sure why I was so quick to choose the dx that I originally suggested without further documentation clarification.
Anyway, if the patient came in and doctor documents the patient as a 'self cutter', that is a mental disorder called Self Mutilation aka Self Harm, Deliberate Self Harm, and Self Injury. This falls under the code that I intially posted. However, if the patient comes in to see doctor with a cut, obviously my initial code selection does not hold true.
Again, I apologize for being so quick as to post a response without being clear on the situation. We're all entitled a 'duh' moment, no?! ;p
EDIT:
Also, I wanted to add that I have heard that when we switch to ICD-10, there will be specific codes for these behaviors. So that will eliminate the hesitancy to tack on a mental disorder code for self cutters, which is good since it's pretty common among teens and young adults these days. From what I've seen, self cutting is something that a lot of people "grow out of", which I find somewhat strange but I digress.