Unsp injury of blood vessels at wrs/hnd lv of unsp arm, subs

This code signifies a follow-up encounter for an unspecified injury to a blood vessel, other than a major artery or vein, located in the wrist or hand of an unspecified arm. The initial injury has already been treated, and this encounter is for ongoing care, such as wound checks, medication adjustments, or monitoring for complications.

Use this code for subsequent encounters when the specific blood vessel injured (e.g., radial artery, ulnar vein) is not documented, and the laterality of the arm is also not specified. This is appropriate for follow-up visits after initial treatment of a wrist or hand blood vessel injury, such as a contusion, laceration, or crush injury affecting smaller vessels.

• Ensure "subsequent encounter" is clearly documented in the medical record to justify the 7th character "D".
• Avoid using this code if a more specific blood vessel or laterality is documented; always strive for the highest level of specificity.
• If the injury is to a major artery or vein, or if the laterality is known, a more specific code from the S65 series should be selected.