Von Willebrand disease, type 2A

This code represents a specific inherited bleeding disorder characterized by a qualitative defect in von Willebrand factor (VWF), leading to impaired platelet adhesion and aggregation. Type 2A is the most common qualitative variant, resulting from a loss of high molecular weight VWF multimers. Patients typically present with mucocutaneous bleeding symptoms.

Use this code when documentation clearly specifies a diagnosis of Von Willebrand disease, type 2A, often confirmed by laboratory testing showing reduced VWF activity and an abnormal multimer distribution. This code is appropriate for patients undergoing treatment or management for this specific VWD subtype.

• Ensure the documentation explicitly states "type 2A" to differentiate from other VWD types.
• Do not confuse with other VWD types (e.g., type 1, 2B, 2M, 2N, 3) which have distinct codes.
• Code any associated bleeding manifestations or complications separately, if applicable.