S42.446K
ICD-10-CMNondisplaced fracture (avulsion) of medial epicondyle of unspecified humerus, subsequent encounter for fracture with nonunion
This code describes a situation where a patient has a fracture of the medial epicondyle of the humerus, specifically an avulsion type, that was initially nondisplaced. The key aspect is that the fracture has failed to heal properly, resulting in a nonunion, and the patient is presenting for follow-up care related to this ongoing issue.
Use this code when documenting follow-up care for a patient with a previously diagnosed nondisplaced avulsion fracture of the medial epicondyle of an unspecified humerus, and the physician's assessment indicates that the fracture has not united. This applies to situations where the patient is receiving treatment for the nonunion, such as further conservative management or preparation for surgical intervention.
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