ICD Code M66.262

ICD code M66.262 is used to classify and document a medical diagnosis of a spontaneous rupture of extensor tendons in the left lower leg. This code is part of the International Classification of Diseases, 10th Revision (ICD-10), which is a standardized system used by healthcare providers to ensure consistent documentation and billing. A spontaneous rupture refers to a tendon tear that occurs without any apparent external trauma or injury, often due to underlying conditions such as tendon degeneration or systemic diseases. The extensor tendons are responsible for extending the foot and toes, and their rupture can lead to significant functional impairment, requiring medical evaluation and potentially surgical intervention.

When to use the ICD code for spontaneous rupture of extensor tendons in the left lower leg, consider the following diagnostic criteria and symptoms:

1. Patient History
- Recent trauma or injury to the left lower leg.
- History of repetitive strain or overuse of the left leg.

2. Physical Examination Findings
- Visible deformity or abnormal positioning of the left foot or toes.
- Swelling or edema in the left lower leg.

3. Pain Assessment
- Acute pain localized to the dorsal aspect of the left foot or ankle.
- Pain that worsens with movement or pressure on the affected area.

4. Functional Limitations
- Difficulty in extending the toes or foot.
- Inability to bear weight on the left leg without significant discomfort.

5. Diagnostic Imaging
- MRI or ultrasound confirming the rupture of extensor tendons in the left lower leg.
- X-rays to rule out associated fractures or other injuries.

6. Associated Symptoms
- Numbness or tingling in the toes or foot.
- Bruising or discoloration around the site of injury.

7. Response to Conservative Treatment
- Lack of improvement with rest, ice, compression, and elevation (RICE) protocol.
- Persistent symptoms despite physical therapy interventions.

These criteria should guide healthcare providers in determining the appropriate use of the ICD code for this specific condition.

For the ICD code M66.262, which pertains to the spontaneous rupture of extensor tendons in the left lower leg, the relevant CPT codes that may be applicable for treatment include:

1. 27650 - Repair, primary, open or percutaneous, of ruptured Achilles tendon.

2. 27652 - Repair, primary, open or percutaneous, of ruptured tendon, other than Achilles, in the leg.

3. 27654 - Repair, secondary, of ruptured tendon, with or without graft, in the leg.

4. 27658 - Repair, flexor tendon, leg; primary, without graft, each tendon.

5. 27659 - Repair, flexor tendon, leg; secondary, with or without graft, each tendon.

6. 27664 - Repair, extensor tendon, leg; primary, without graft, each tendon.

7. 27665 - Repair, extensor tendon, leg; secondary, with or without graft, each tendon.

These CPT codes are typically used to describe surgical procedures that may be necessary to repair tendon ruptures in the lower leg. It's important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the clinical scenario.

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