2025 ICD-10-CM code M21.06
(Active) Effective Date: N/A Arthropathies - Other joint disorders Diseases of the musculoskeletal system and connective tissue Feed
Valgus deformity of the knee, not elsewhere classified. This condition, also known as genu valgum or knock knee, involves angulation of the distal bones of the knee joint, causing the lower leg to move outward.
Medical necessity for treatment is established by documenting the severity of the deformity, its impact on the patient's function, and the expected benefit of the proposed intervention.
Diagnosis is typically based on physical examination, measurement of the joint angle, and imaging (X-ray or MRI). Treatment can involve NSAIDs for pain relief, surgical repair, and splint immobilization.
- Diseases of the musculoskeletal system and connective tissue
- M21.0: Valgus deformity, not elsewhere classifiedM21: Other acquired deformities of limbs
In simple words: Knock knee, where the knees angle in and touch, is caused by the bones in the knee joint being angled so that the lower leg points outwards.This can cause pain and inflammation in the knee and make it harder to do everyday activities.
Valgus deformity, not elsewhere classified, knee.A valgus deformity of the knee refers to the angulation of the distal bones of the knee joint, causing the lower leg to move outward, away from the midline of the body, resulting in a knock-kneed appearance.This specific code indicates the valgus deformity is not represented by another, more specific code.
Example 1: A 50-year-old patient presents with knee pain and a knock-kneed appearance. After examination and imaging, the physician diagnoses a valgus deformity of the knee, not otherwise specified, and recommends physical therapy., A 25-year-old athlete experiences a knee injury during a game. Subsequent examination reveals a valgus deformity, necessitating surgical correction and rehabilitation., A child is brought in by their parents due to persistent knock knees.After ruling out other conditions, the physician diagnoses a valgus deformity and prescribes bracing and monitoring.
Documentation should include physical exam findings, angle measurements, imaging results, and details of the patient's symptoms and functional limitations.Any prior treatments or injuries related to the knee should also be documented.
- Specialties:Orthopedics, Pediatrics, Sports Medicine
- Place of Service:Office, Inpatient Hospital, Outpatient Hospital, Physical Therapy Office