M66.3 - Spontaneous rupture of flexor tendons
M66.35 - Spontaneous rupture of flexor tendons, thigh
M66.351 - Spontaneous rupture of flexor tendons, right thigh
M66.352 - Spontaneous rupture of flexor tendons, left thigh
M66.359 - Spontaneous rupture of flexor tendons, unspecified thigh