Lacerat extn musc/fasc/tend finger at wrs/hnd lv, sequela

This code indicates a long-term complication or residual effect from a past laceration injury to the extensor muscles, fascia, or tendons of a finger other than the thumb, specifically at the wrist or hand level. This could manifest as chronic pain, stiffness, limited range of motion, or other persistent functional deficits resulting from the original wound.

Apply this code when documenting a patient presenting with ongoing issues directly attributable to a previously healed laceration of the extensor structures of a finger (excluding the thumb) at the wrist or hand. This is appropriate for follow-up encounters addressing the chronic sequelae, not the initial acute injury.

• Always use a seventh character 'S' for sequela when the patient is seen for a complication or residual effect of a past injury.
• Ensure documentation clearly links the current condition to a previous laceration of the specified anatomical structures.
• Do not use this code for acute injuries; instead, select an acute laceration code from the S66.31- or S66.32- series.