ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.8 > S31.81 > S31.815 S31.815 Open bite of right buttock Non-Billable/Non-Specific Applicable To Bite of right buttock NOS Type 1 Excludes superficial bite of buttock (S30.870) Codes S31.815A..., initial encounterS31.815D..., subsequent encounterS31.815S..., sequela