ICD Code M66.379

ICD code M66.379 is used to classify and document the medical condition of a spontaneous rupture of flexor tendons in an unspecified ankle and foot. This code is part of the International Classification of Diseases, 10th Revision (ICD-10), which is a system used by healthcare providers to standardize the diagnosis of medical conditions. A spontaneous rupture of flexor tendons refers to the sudden tearing or breaking of the tendons that help in bending the foot and toes, occurring without any external trauma or injury. The term "unspecified" indicates that the specific ankle or foot affected has not been detailed in the medical documentation. This code is crucial for healthcare providers to accurately record the condition for treatment planning, billing, and statistical purposes.

When to use the ICD code for spontaneous rupture of flexor tendons, unspecified ankle and foot:

1. Clinical Presentation
- Patient reports sudden onset of pain in the ankle or foot.
- Swelling or bruising observed in the affected area.

2. Physical Examination Findings
- Tenderness upon palpation of the flexor tendon region.
- Limited range of motion in the ankle or foot.

3. Functional Impairment
- Difficulty in performing activities that require flexion of the toes or foot.
- Inability to bear weight on the affected limb.

4. Diagnostic Imaging Results
- MRI or ultrasound confirms the presence of a tendon rupture.
- Absence of other injuries or conditions that could explain the symptoms.

5. Patient History
- Recent history of trauma or overuse of the ankle or foot.
- Previous tendon injuries or surgeries in the same area.

6. Exclusion of Other Conditions
- Rule out other causes of pain or dysfunction, such as fractures or ligament injuries.
- Ensure that the symptoms are not attributable to systemic conditions affecting tendon integrity.

7. Treatment Plan Consideration
- Surgical intervention is being considered or has been performed for tendon repair.
- Conservative management options are being discussed based on the diagnosis.

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

For the ICD code M66.379, which pertains to the spontaneous rupture of flexor tendons in the unspecified ankle and foot, the relevant CPT codes that may be applicable for treatment include:

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

2. CPT 27652 - Repair, primary, open or percutaneous, with graft (includes obtaining graft) of ruptured Achilles tendon.

3. CPT 27654 - Repair, secondary, Achilles tendon, with or without graft.

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

5. CPT 27659 - Repair, flexor tendon, leg; primary, with graft (includes obtaining graft), each tendon.

6. CPT 27664 - Repair, flexor tendon, leg; secondary, with or without graft, each tendon.

These CPT codes are commonly used for surgical procedures related to tendon repair in the ankle and foot region. It's important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the clinical details of the case. Proper coding ensures accurate billing and reimbursement in the healthcare revenue cycle management process.

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