Posterior subluxation of left ulnohumeral joint, init encntr

This code signifies a partial dislocation of the elbow joint where the ulna and humerus are misaligned, specifically with the ulna shifting posteriorly relative to the humerus, affecting the left arm. It indicates that the joint surfaces are no longer in full apposition but remain in partial contact.

Apply this code for initial encounters with patients presenting with a newly diagnosed posterior subluxation of the left ulnohumeral joint, typically following trauma or injury. This would include the initial assessment, diagnosis, and treatment planning for the acute injury.

• Ensure documentation specifies "posterior" and "left" to support this specific code.
• Verify that the encounter is indeed the "initial encounter" for this injury. Subsequent care would require a different seventh character.
• Distinguish carefully between subluxation (partial dislocation) and complete dislocation, as these have different codes.