S42.416K
ICD-10-CMNondisplaced simple supracondylar fracture without intercondylar fracture of unspecified humerus, subsequent encounter for fracture with nonunion
This code describes a supracondylar fracture of the humerus that is not displaced and does not involve the intercondylar region. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone fragments have failed to heal together after a period of time.
This code is appropriate for documenting ongoing treatment of a simple supracondylar humerus fracture where the bone has not united. This includes situations where a patient is undergoing further evaluation, conservative management, or surgical intervention specifically for the nonunion of this particular fracture type.
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