Oth spon disrupt of anterior cruciate ligament of right knee

This code signifies a non-traumatic tear or rupture of the anterior cruciate ligament (ACL) in the right knee. This disruption occurs without an external force or injury, often due to degenerative changes or repetitive stress.

Apply this code when documentation clearly indicates a spontaneous, non-traumatic rupture of the right ACL. This typically involves patients presenting with knee instability, pain, and swelling, where the injury mechanism is not attributed to an acute external event. Supporting documentation would include physician notes detailing the absence of trauma and findings consistent with an ACL tear.

• Differentiate carefully between spontaneous (M23.6-) and traumatic (S83.5-) ACL tears based on the documented mechanism of injury.
• Ensure laterality (right knee) is explicitly stated in the medical record to support this specific code.
• Consider co-occurring conditions, such as meniscal tears or other ligamentous injuries, and code them separately.