Unsp injury of right innominate or subclav art, sequela

This code signifies a long-term complication or late effect stemming from an unspecified injury to the right innominate (brachiocephalic) or subclavian artery. These arteries are major vessels supplying blood to the right arm, head, and neck. The sequela could manifest as chronic pain, vascular insufficiency, aneurysm formation, or other persistent issues directly attributable to the initial injury.

Use this code when documenting a patient presenting with a current condition that is a direct consequence of a past, unspecified injury to the right innominate or subclavian artery. This applies when the acute phase of the original injury has passed, and the patient is now experiencing residual effects. Examples include chronic right arm claudication due to an old subclavian artery trauma, or a pseudoaneurysm discovered years after an initial, poorly documented injury.

• Always assign a second code to describe the specific nature of the sequela (e.g., I72.8 for other specified aneurysms, R02 for gangrene).
• Ensure documentation clearly links the current condition to a past injury of the specified artery.
• This code is for unspecified injury; if the type of injury (e.g., laceration, contusion) is known, a more specific sequela code from the S25 category should be used.