Unsp inj intrns musc/fasc/tend l lit fngr at wrs/hnd lv,sqla

This code indicates a long-term or residual effect from an unspecified injury to the intrinsic muscles, fascia, or tendons of the left little finger, specifically at the wrist and hand level. This could include chronic pain, weakness, limited range of motion, or other persistent issues resulting from a previous acute injury to these structures.

Use this code when documenting a patient presenting with ongoing symptoms directly attributable to a past injury of the intrinsic muscles, fascia, or tendons of the left little finger. This applies when the original injury has healed, but the patient continues to experience sequelae, and the specific nature of the original injury to these structures was not documented or is unknown.

• Always use an additional code to describe the specific sequela (e.g., chronic pain, scar formation, muscle weakness).
• Ensure documentation clearly links the current condition to a past injury of the specified anatomical structures.
• Do not use this code for acute injuries; instead, use the appropriate acute injury code from the S66.50 category.