Varus deformity, not elsewhere classified, unspecified elbow

This code signifies an inward angulation of the elbow joint, not due to a congenital anomaly or other specified cause. It describes a structural deviation where the distal part of the forearm is angled towards the midline of the body relative to the humerus, without a more specific diagnosis.

Use this code when documentation indicates a varus deformity of an unspecified elbow, and no further specificity regarding the cause (e.g., post-traumatic, congenital) is provided. This is appropriate for initial evaluations or when the etiology is still under investigation.

• Avoid using this code if the laterality (right or left elbow) is documented; instead, choose the more specific M21.121 or M21.122.
• Do not use this code if the varus deformity is congenital (Q68.4) or post-traumatic (M95.0).
• Query the provider for laterality and underlying cause if not documented to allow for more specific coding.