External constriction of left hand, sequela

This code signifies a long-term or residual effect resulting from an external constriction injury to the left hand. This means the initial injury has healed, but there are ongoing issues or complications directly attributable to that past constriction. Examples include chronic pain, nerve damage, circulatory impairment, or functional limitations that persist after the acute phase.

Apply this code when documenting a patient presenting with persistent symptoms or conditions in their left hand that are a direct consequence of a previously sustained external constriction injury. This is appropriate for follow-up visits where the sequela is being managed, or when the sequela is the primary reason for the encounter. Do not use for the initial acute injury.

• Always sequence this code after the code for the specific sequela (e.g., chronic pain, nerve damage) if known.
• Ensure documentation clearly links the current left hand condition to a past external constriction event.
• The "S" seventh character indicates sequela and is mandatory for this code.