Unsp injury of msl/tnd of unsp wall of thorax, subs

This code signifies a follow-up visit for an unspecific injury affecting the muscles or tendons within an unspecified area of the chest wall. The initial injury was not clearly defined as a strain, sprain, or other specific trauma, and the exact location on the thorax was not documented.

Use this code for subsequent encounters when a patient is receiving ongoing care for a previously diagnosed, ill-defined muscle or tendon injury of the chest wall. This is appropriate when the initial injury lacked specific detail regarding the type of trauma or the precise anatomical location within the thorax, and the current visit is for follow-up, healing, or rehabilitation.

• Ensure "D" (subsequent encounter) is the appropriate seventh character; do not use "A" (initial) or "S" (sequela).
• Avoid this code if a more specific muscle or tendon injury (e.g., strain, tear) or a more precise anatomical location (e.g., intercostal muscle) is documented.
• Query the provider for more specificity if possible, to allow for a more precise code selection.