Valgus deformity, not elsewhere classified, right knee

This code signifies an outward angulation of the lower leg relative to the thigh at the right knee joint, often referred to as "knock-knee." This deformity can be congenital or acquired due to trauma, arthritis, or metabolic bone disease, leading to altered biomechanics and potential pain.

Apply this code when documentation explicitly states a valgus deformity of the right knee that is not attributable to a more specific underlying condition classified elsewhere. This is appropriate for primary or secondary diagnoses when the valgus angulation is the focus of treatment or evaluation.

• Ensure laterality is clearly documented as "right knee."
• Do not use if a more specific code for the underlying cause of the valgus deformity (e.g., osteoarthritis with valgus deformity) is available.
• Consider additional codes for associated symptoms like pain (M25.561) or functional limitations if documented.