Varus deformity, not elsewhere classified, left elbow

This code signifies an inward angulation of the left elbow joint, where the forearm deviates medially relative to the upper arm. This deformity is often congenital or acquired due to trauma, infection, or metabolic bone disease, resulting in a "gunstock" appearance. It indicates a structural abnormality of the joint that is not classified under more specific conditions.

Use this code when documentation clearly states a varus deformity of the left elbow, and no more specific ICD-10-CM code exists for the underlying cause. This typically applies to patients presenting with elbow pain, limited range of motion, or cosmetic concerns related to the inward angulation. Physician notes should explicitly identify the deformity as varus and specify the left elbow.

• Ensure the documentation specifies "varus" and not "valgus" (M21.022 for valgus deformity, left elbow), as these are opposite deformities.
• Always confirm the laterality (left elbow) is clearly documented to avoid miscoding.
• Look for an underlying cause; if a specific etiology (e.g., fracture malunion) is documented, a more specific code might be appropriate as a primary diagnosis, with this code potentially used as a secondary diagnosis if the deformity persists.