Spontaneous rupture of flexor tendons, left lower leg

This code signifies a non-traumatic tear or break in one or more flexor tendons located in the patient's left lower leg. This rupture occurs without an external force or injury, often due to underlying degenerative changes, inflammatory conditions, or systemic diseases affecting tendon integrity.

Apply this code when documentation clearly indicates a spontaneous (non-traumatic) rupture of a flexor tendon in the left lower leg. This typically includes conditions like tendinopathy progressing to rupture, or ruptures associated with rheumatoid arthritis or corticosteroid use. Physician notes should specify the spontaneous nature and the affected limb.

• Ensure documentation specifies "spontaneous" or "non-traumatic" to differentiate from traumatic ruptures.
• Verify laterality (left lower leg) is clearly documented.
• Consider additional codes for any underlying systemic conditions contributing to the spontaneous rupture, such as inflammatory arthropathies.