Posterior subluxation of unspecified humerus, sequela

This code indicates a partial dislocation of the shoulder joint where the humeral head has shifted backward relative to the glenoid, and the specific side (left or right) is not documented. The "S" at the end signifies that this is a sequela code, meaning it describes a late effect or complication of an initial injury, rather than an acute event.

Use this code when documenting a chronic or residual posterior subluxation of the shoulder that is a long-term consequence of a previous injury. This would apply in cases where the patient presents for treatment of ongoing symptoms related to the old injury, such as instability or pain, and the initial injury has healed.

• Always ensure the documentation clearly states the condition is a "sequela" or "late effect" of a prior injury.
• If the laterality (left or right) of the humerus is specified in the medical record, a more specific code should be used.
• This code should be sequenced after the code(s) for the underlying cause or nature of the sequela, if applicable.