Spontaneous rupture of flexor tendons, unspecified shoulder

This code describes the non-traumatic tearing of one or more flexor tendons in an unspecified shoulder. This condition typically results from degenerative changes within the tendon rather than an acute injury.

Use this code when documentation specifies a spontaneous rupture of a flexor tendon in the shoulder, and the laterality (left or right) is not recorded. This code is appropriate when the rupture is clearly not due to an external force or injury.

• Ensure documentation explicitly states "spontaneous" or "non-traumatic" rupture of a flexor tendon.
• Avoid using this code if the rupture is due to an acute injury; instead, consider codes from the S46 category.
• Always attempt to clarify laterality with the provider if "unspecified shoulder" is documented.