ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.1 > S31.10 > S31.101 S31.101 Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.101A..., initial encounterS31.101D..., subsequent encounterS31.101S..., sequela