Strain of unsp musc/fasc/tend at forarm lv, unsp arm, subs

This code signifies a muscle, fascia, or tendon strain located in the forearm, where the specific arm (left or right) is not documented. It indicates that the patient is receiving follow-up care for an injury that has already been diagnosed and treated, but is not yet fully resolved.

Apply this code for subsequent encounters when a patient presents with an ongoing, unspecified forearm strain. This would include follow-up appointments for physical therapy, re-evaluation of symptoms, or medication management after the initial injury has been assessed.

• Ensure "subsequent encounter" is clearly documented in the medical record.
• Avoid using this code if the specific arm (left or right) is known; instead, use a more specific code.
• Pair this code with external cause codes (V, W, X, Y codes) to describe the circumstances of the injury, if applicable and documented.