Oth fx shaft of unsp humerus, subs for fx w nonunion

Other fracture of shaft of unspecified humerus, subsequent encounter for fracture with nonunion

📋Clinical Description

This code signifies a non-healing fracture of the humeral shaft, not specified as to laterality, that is currently under active treatment for the nonunion. It indicates that the initial healing process has failed, and the patient is in a subsequent phase of care specifically addressing this complication.

🎯When to Use

Apply this code when documentation clearly indicates a diagnosis of humeral shaft nonunion, without specifying left or right, and the patient is receiving ongoing medical or surgical management for this condition. This would include follow-up visits, imaging, or procedures related to promoting union after initial treatment failure.

💡Coding Tips

Ensure documentation explicitly states "nonunion" of the humeral shaft.
Verify that the encounter is for ongoing treatment of the nonunion, not for initial fracture care.
Confirm that laterality (left/right) is not specified in the medical record.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲S42.399Other fracture of shaft of unspecified humerus

S42.399K(current)

Crosswalks

733.82ApproxICD-9

Same Category

S42Fracture of shoulder and upper arm S42.0Fracture of clavicle S42.00Fracture of unspecified part of clavicle S42.001Fracture of unspecified part of right clavicle S42.001AFracture of unsp part of right clavicle, init for clos fx