ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.1 > S31.15 > S31.156 S31.156 Open bite of abdominal wall, right flank without penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.156A..., initial encounterS31.156D..., subsequent encounterS31.156S..., sequela