Strain unsp musc/fasc/tend at shldr/up arm, left arm, subs

This code signifies a strain injury affecting the muscles, fascia, or tendons of the left shoulder and upper arm, where the specific muscle or tendon involved is not documented. It indicates that the patient has received initial treatment for this injury and is now presenting for follow-up care or continued management.

Use this code for a patient presenting with a left shoulder/upper arm strain for a subsequent visit, where the exact anatomical structure strained is not specified in the medical record. This is appropriate for follow-up appointments after the initial diagnosis and treatment have been established.

• Ensure the documentation clearly indicates a "subsequent encounter" for the injury.
• Only use this code if the specific muscle, fascia, or tendon involved is truly unspecified in the medical record. If a specific structure is identified, a more precise code should be used.
• Verify laterality (left arm) is consistently documented.