Injury of other nerves at lower leg level, left leg, sequela

This code signifies a long-term or residual effect from a past injury to any nerve in the left lower leg, excluding those specifically categorized elsewhere. These sequelae can manifest as chronic pain, numbness, weakness, or altered sensation that persists after the initial healing phase of the nerve injury. The original injury itself is no longer acute.

Apply this code when documenting a patient presenting with ongoing neurological deficits in the left lower leg directly attributable to a previous nerve trauma. This includes conditions like post-traumatic neuropathy, persistent paresthesia, or muscle weakness resulting from an old nerve laceration, compression, or contusion. The "S" seventh character indicates that this is a sequela, not an acute injury.

• Always assign this code as a secondary diagnosis, following the code for the primary condition or symptom being treated.
• Ensure documentation clearly links the current neurological deficit to a past injury of a nerve in the left lower leg.
• Do not use for acute nerve injuries; those require codes from the initial encounter or subsequent encounter categories.