ICD-10-CM > S00-T88 > S30-S39 > S31 > S31.6 > S31.64 > S31.645 S31.645 Puncture wound with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity Non-Billable/Non-Specific Codes S31.645A..., initial encounterS31.645D..., subsequent encounterS31.645S..., sequela