Injury of blood vessels of head, NEC, sequela

This code signifies a long-term or late effect resulting from a past injury to the blood vessels within the head, excluding those specifically classified elsewhere. It indicates that the patient is experiencing residual problems directly attributable to a previous vascular head trauma.

Apply this code when documentation clearly links current symptoms or conditions to an old injury of the head's blood vessels. This is appropriate for conditions like chronic headaches, neurological deficits, or persistent vascular abnormalities that are sequelae of a prior head injury involving blood vessels.

• Always sequence the sequela code (S09.0XXS) first, followed by a code describing the specific nature of the sequela (e.g., I69.x for neurological deficits).
• Ensure documentation explicitly states the condition is a "sequela," "late effect," or "due to old injury" of head blood vessels.
• Do not use for acute injuries; this code is exclusively for residual conditions after the acute phase has passed.