Spontaneous rupture of other tendons, left ankle and foot

📋Clinical Description

This code signifies a non-traumatic tear of a tendon in the left ankle or foot, occurring without an external force or injury. This typically involves tendons weakened by degenerative changes, overuse, or systemic conditions, leading to a sudden and unexpected rupture.

🎯When to Use

Apply this code when documentation clearly states a spontaneous (atraumatic) rupture of a tendon in the left ankle or foot, excluding the Achilles tendon. This code is appropriate when the rupture is not due to an acute injury, but rather an underlying degenerative process or disease.

💡Coding Tips

Differentiate from traumatic ruptures (S96.8- codes) which involve an external force or injury.
Ensure the documentation specifies "spontaneous" or "atraumatic" and clearly identifies the left ankle/foot.
Do not use for spontaneous Achilles tendon ruptures, which have specific codes (M66.86-).

AI-generated reference — verify against official guidelines

Code Hierarchy

▲M66.87Spontaneous rupture of other tendons, ankle and foot

M66.872(current)

Crosswalks

727.68ApproxICD-9

Same Category

M66Spontaneous rupture of synovium and tendon M66.0Rupture of popliteal cyst M66.1Rupture of synovium M66.10Rupture of synovium, unspecified joint M66.11Rupture of synovium, shoulder