Correct ICD-9 code

What is the proper code to use for the diagnosis of: decreased anal sphincter tone?

Jun 10th, 2010 -

the closest I see is

787.6- incontinence of feces, as that is the result of decreased anal tone

Jun 10th, 2010 - nmaguire 2,606

loss

Do you know the cause, ex anal fissure (565.0?