ICD-10-CM > S00-T88 > S50-S59 > S52 > S52.0 > S52.04 > S52.046 > S52.046J S52.046J Nondisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing Billable/Specific Copy Code Copy Description