Injury of brachial plexus, initial encounter

This code signifies damage to the brachial plexus, a network of nerves originating from the spinal cord that innervates the shoulder, arm, and hand. Injuries can range from stretching (neuropraxia) to complete avulsion of the nerve roots, leading to varying degrees of motor and sensory deficits in the upper extremity.

Apply this code for the initial encounter of a patient presenting with a newly diagnosed injury to the brachial plexus. Documentation should clearly state the injury mechanism, the specific nerves affected if known, and the initial assessment and treatment plan. This code is appropriate for conditions like Erb's palsy or Klumpke's palsy when the injury is acute.

• Ensure documentation specifies "initial encounter" for this specific injury. Subsequent care will require a different seventh character.
• Distinguish from peripheral nerve injuries distal to the brachial plexus; those have separate codes.
• Look for associated fractures (e.g., clavicle, humerus) or dislocations, which should be coded additionally.