ICD-10-CM > S00-T88 > S30-S39 > S36 > S36.5 > S36.50 > S36.509 S36.509 Unspecified injury of unspecified part of colon Non-Billable/Non-Specific Codes S36.509A..., initial encounterS36.509D..., subsequent encounterS36.509S..., sequela