Strain of flexor musc/fasc/tend l thm at forarm lv, sequela

This code signifies a non-traumatic overstretching or tearing of the flexor muscles, fascia, or tendons of the left thumb, specifically at the forearm level. It represents a residual condition or complication arising from an initial injury, rather than the acute injury itself.

Use this code for documentation of a patient presenting with ongoing symptoms or complications directly attributable to a previously sustained strain of the left thumb flexor structures at the forearm. This applies when the initial acute injury has resolved, but the patient continues to experience issues such as pain, weakness, or limited range of motion as a direct consequence.

• Requires a seventh character "S" to indicate sequela, meaning the patient is seen for a complication or residual effect of a previous injury.
• Do not use for the initial acute injury; instead, use the appropriate acute strain code.
• Ensure documentation clearly links the current presentation to a prior strain of the specified anatomical structures.