ICD-9 secondary diags w/ abortion

Good morning, My first-listed code is 634.92, complete spontaneous abortion w/o complication. My question is regarding epilepsy as a secondary diagnosis. Do I use 649.43 345.90 or just 345.90? I am uncertain whether to use chapter 11 codes w/ abortion diagnoses. This is an outpatient ED encounter. Thank you,

Elaine