S52.046H
ICD-10-CMNondisplaced fracture of coronoid process of unspecified ulna, subsequent encounter for open fracture type I or II with delayed healing
This code describes a fracture of the coronoid process of the ulna that is not displaced, meaning the bone fragments remain in their normal anatomical alignment. This specific code is used when the initial injury was an open fracture (Type I or II) and the healing process is taking longer than expected.
This code is appropriate for follow-up encounters for patients who previously sustained an open coronoid process fracture (Gustilo-Anderson Type I or II) of an unspecified ulna, and are now experiencing delayed union or healing complications. It indicates that the fracture itself is nondisplaced, but the overall healing trajectory is prolonged.
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