S52.266Q
ICD-10-CMNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with malunion
This code describes a situation where a patient has a fracture in the shaft of the ulna that is broken into multiple pieces (segmental) but the bone fragments are still in their normal alignment (nondisplaced). This specific code is for an open fracture (meaning the skin was broken) that is now healing incorrectly (malunion) during a follow-up visit, and the arm involved is not specified.
Use this code for a patient presenting for follow-up care of a previously treated open segmental ulna shaft fracture (Type I or II) where the fracture has healed in an unsatisfactory position. This would apply to scenarios where the physician is monitoring the malunion or planning interventions for it.
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