ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.1 > S31.10 > S31.104 S31.104 Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.104A..., initial encounterS31.104D..., subsequent encounterS31.104S..., sequela