Fused fingers, bilateral

This code describes a congenital anomaly characterized by the fusion of two or more fingers on both hands. This condition, known as syndactyly, results in webbing or joining of the digits, which can range from partial to complete fusion, involving skin and/or bone.

Apply this code when documentation clearly indicates congenital syndactyly affecting both hands. This diagnosis is typically made at birth or early childhood and is supported by physical examination findings and imaging studies.

• Ensure documentation specifies "bilateral" involvement; otherwise, a unilateral code may be more appropriate.
• Distinguish from acquired fusion due to trauma or burns, which would be coded differently.
• If specific fingers are fused (e.g., index and middle), additional codes for specific finger involvement may be necessary if available and documented.