M66.372 Spontaneous rupture of flexor tendons, left ankle and foot

ICD10CM code

#### Name of the Condition
- Spontaneous Rupture of Flexor Tendons, Left Ankle and Foot (ICD-10 Code: M66.372)

#### Summary
- This condition involves the sudden breaking or tearing of one or more flexor tendons in the left ankle and foot, leading to difficulties in movement and pain. Flexor tendons are responsible for bending the foot and toes downward.

#### Causes
- Causes can include sudden trauma, overuse, underlying inflammatory conditions like arthritis, or degenerative changes in the tendon tissue. Spontaneous ruptures are typically non-traumatic and can occur during normal activities.

#### Risk Factors
- Age-related degenerative changes, a history of tendon disorders, chronic inflammatory diseases such as rheumatoid arthritis, and the use of certain medications like corticosteroids or fluoroquinolones.

#### Symptoms
- Sudden pain, swelling, difficulty or inability to bend the foot or toes downward, and visible changes in the contour of the tendon area. A popping sound may be heard at the time of rupture.

#### Diagnosis
- Diagnosis begins with a physical examination, where the physician assesses movement and looks for swelling or changes in tendon structure. Imaging tests such as MRI or ultrasound can confirm the rupture and assess its severity.

#### Treatment Options
- Non-surgical treatment may involve immobilization with a cast or brace, and physical therapy to regain strength and flexibility. Surgical intervention may be necessary to repair the torn tendon, especially in active individuals wanting full functional recovery.

#### Prognosis and Follow-Up
- With appropriate treatment, many individuals recover well, although the healing process may take several weeks to months. Follow-up is essential to monitor healing and adjust rehabilitation exercises as needed.

#### Complications
- Untreated tendon ruptures can lead to chronic pain, decreased foot function, and difficulty walking or standing. Surgery may have risks of infection or incomplete healing.

#### Lifestyle & Prevention
- Preventive measures include regular exercise to maintain tendon strength and flexibility, avoiding excessive stress on the tendons, and managing chronic conditions that may weaken tendons.

#### When to Seek Professional Help
- Immediate medical attention is needed if there is sudden pain, inability to move the foot or toes, or if there are signs of a rupture such as swelling and deformity.

#### Additional Resources
- American Academy of Orthopaedic Surgeons (AAOS)
- Mayo Clinic website
- Local physical therapy or orthopedic clinics providing support and education on tendon injuries

#### Tips for Medical Coders
- Ensure to code for the correct side of the body as laterality is specified; in this case, it is the left ankle and foot.
- Verify that the rupture is specified as spontaneous and involves flexor tendons for accurate coding under M66.372.
- Be aware of additional codes that may be relevant in case of related injuries or complications.

Similar Codes