ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.6 > S31.63 > S31.635 S31.635 Puncture wound without foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.635A..., initial encounterS31.635D..., subsequent encounterS31.635S..., sequela