Inj cutan sensory nerve at ank/ft level, left leg, sequela

This code signifies a long-term complication or residual effect stemming from a past injury to a cutaneous sensory nerve in the left ankle or foot. These sequelae can manifest as chronic pain, numbness, paresthesia, or altered sensation in the affected area, persisting after the initial acute injury has healed.

Use this code for patients presenting with persistent neurological symptoms in the left ankle or foot, such as chronic dysesthesia or hypoesthesia, directly attributable to a previous injury of a superficial sensory nerve. This applies when the acute phase of the original injury has passed, and the current encounter addresses the lasting consequences.

• Requires a seventh character "S" to indicate sequela, meaning the current encounter is for the late effects of the injury.
• Always link this diagnosis to a documented history of a prior injury affecting a cutaneous sensory nerve in the left ankle or foot.
• Do not use for acute injuries; instead, select an acute injury code from the S94.3- category.