Unsp inj extn musc/fasc/tend unsp finger at forarm lv, sqla

This code signifies a long-term complication or residual effect stemming from an unspecified injury to the extensor muscles, fascia, or tendons of an unspecified finger, with the injury occurring at the forearm level. It indicates that the acute phase of the original injury has passed, and the patient is now experiencing a lasting consequence.

Use this code when documenting a sequela (e.g., chronic pain, stiffness, weakness, limited range of motion, scar tissue) resulting from a past injury to the extensor structures of a finger, where the original injury site was in the forearm. This code is appropriate when the specific nature of the original injury or the affected finger is not documented or is unknown.

• Requires a seventh character "S" to indicate sequela.
• Only use when the specific finger and the precise nature of the extensor injury are not specified in the documentation.
• Always link to an external cause code (V00-Y99) if the original injury's cause is known and documented.