Inj intrns musc/fasc/tend l little fngr at wrs/hnd lv, sqla

This code signifies a long-term or late effect resulting from a previous injury to the intrinsic muscles, fascia, or tendons of the left little finger, specifically at the wrist or hand level. This could include conditions like chronic pain, stiffness, weakness, or deformity that persist after the initial injury has healed.

Apply this code when documenting a patient presenting with residual symptoms or complications directly attributable to an old injury of the intrinsic structures of the left little finger. This is appropriate for follow-up visits where the primary focus is managing the sequelae, rather than the acute injury itself. Examples include chronic tenosynovitis, scar tissue formation, or persistent weakness following a laceration or crush injury.

• Always use an external cause code (V00-Y99) in conjunction with this sequela code to identify the original cause of the injury.
• Ensure documentation clearly links the current symptoms to a past injury of the specified anatomical site.
• Do not use this code for acute injuries; instead, refer to the acute injury codes within the S66.5 category.