ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.4 > S31.45 > S31.45XA S31.45XA Open bite of vagina and vulva, initial encounter Billable/Specific Copy Code Copy Description Applicable To Bite of vagina and vulva NOS Type 1 Excludes superficial bite of vagina and vulva (S30.864, S30.874)