ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.1 > S31.15 > S31.157 S31.157 Open bite of abdominal wall, left flank without penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.157A..., initial encounterS31.157D..., subsequent encounterS31.157S..., sequela