M23.1: Discoid meniscus (congenital)

Discoid meniscus is a rare, congenital condition where the knee's meniscus (a crescent-shaped cartilage that acts as a shock absorber between the femur and the tibia) has an abnormal, disc-like shape, unlike the normal C-shape. The abnormal shape means the meniscus is less stable and more prone to injuries. People with this condition may not realize they have it until they experience a knee injury or pain, clicking sound when they move their knee, or a sensation of the knee giving way. In some cases, discoid meniscus might not cause any noticeable symptoms. It's important to know that this condition is typically present at birth, though its exact cause is not known. The symptoms can appear at any age but are most commonly noted in children and young adults.

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The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.

If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.

For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.