Injury of brachial plexus, sequela

This code signifies a long-term or late effect resulting from a previous injury to the brachial plexus. These sequelae can manifest as persistent weakness, sensory deficits, pain, or functional limitations in the arm and hand, occurring after the acute phase of the initial injury has resolved.

Apply this code when documenting conditions such as chronic neuropathic pain, muscle atrophy, contractures, or persistent paralysis in the upper extremity that are directly attributable to an old brachial plexus injury. This code is appropriate for follow-up visits addressing these lasting complications, rather than the initial acute injury.

• Always sequence this sequela code first, followed by a code for the specific manifestation of the sequela (e.g., chronic pain, muscle weakness).
• Ensure documentation clearly links the current condition to a past brachial plexus injury.
• Do not use this code for acute brachial plexus injuries; instead, use the appropriate acute injury code from the S14 category.