Posterior disp fx of sternal end of unsp clavicle, sequela

This code signifies a fracture at the sternal (medial) end of the clavicle, where the broken bone fragments have shifted backward (posteriorly). It specifically indicates that this fracture is a sequela, meaning it represents a late effect or complication of an initial injury, not the acute fracture itself. The affected clavicle (left or right) is not specified.

Use this code when documenting a chronic or residual condition resulting from a previously sustained posterior displaced fracture of the sternal end of an unspecified clavicle. This applies when the patient is presenting for treatment of the long-term effects, such as pain, deformity, or functional limitation, after the initial healing phase of the fracture.

• Always use this code as a secondary diagnosis, following a code that describes the nature of the sequela (e.g., chronic pain, malunion).
• Ensure documentation clearly states the fracture is a "sequela" or "late effect" and specifies the posterior displacement of the sternal end.
• If the laterality (left or right) of the clavicle is known, select a more specific code from the S42.01- series.