Valgus deformity, not elsewhere classified, left elbow

This code describes an outward angulation of the left elbow joint, where the forearm deviates laterally from the upper arm. This deformity is typically congenital or acquired due to trauma, arthritis, or other underlying conditions, and is not classified under more specific valgus diagnoses.

Apply this code when documentation explicitly states a valgus deformity of the left elbow, and no more specific ICD-10-CM code (e.g., post-traumatic valgus) is applicable. This code is appropriate for both congenital and acquired valgus deformities when the etiology is not otherwise specified or classifiable.

• Ensure laterality is clearly documented as "left elbow."
• Always check for more specific valgus deformity codes (e.g., M21.05- for valgus deformity of the hip) before defaulting to this "not elsewhere classified" code.
• If the valgus deformity is secondary to a fracture or other injury, code the underlying condition first, followed by this code.