ICD Code M66.251

ICD code M66.251 is used to classify and document the medical diagnosis of a spontaneous rupture of extensor tendons in the right thigh. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM), which is a system used by healthcare providers to standardize the recording of diseases and health conditions. The code specifically indicates that the rupture occurred without any external trauma or injury, affecting the tendons responsible for extending or straightening the leg at the knee joint. Proper documentation of this condition using the ICD code helps in accurate billing, treatment planning, and statistical analysis within the healthcare system.

When to use the ICD code for spontaneous rupture of extensor tendons in the right thigh:

1. Clinical Diagnosis: Confirmed diagnosis of spontaneous rupture of extensor tendons.

2. Symptoms Present:

- Sudden onset of pain in the right thigh.

- Swelling or inflammation in the affected area.

- Limited range of motion in the knee or hip joint.

- Visible deformity or abnormal positioning of the knee or thigh.

- Tenderness upon palpation of the thigh.

3. Imaging Results: MRI or ultrasound findings indicating a rupture of the extensor tendons.

4. Patient History: Absence of prior trauma or injury to the area that could explain the rupture.

5. Physical Examination: Positive findings during a physical examination, such as weakness in knee extension or inability to perform specific movements.

6. Exclusion of Other Conditions: Ruling out other potential causes of similar symptoms, such as tendonitis or muscle strain.

7. Treatment Plan: Documentation of a treatment plan that addresses the spontaneous rupture, which may include surgical intervention or physical therapy.

For the ICD code M66.251, which pertains to the spontaneous rupture of extensor tendons in the right thigh, the relevant CPT codes that may be applicable for treatment include:

1. 27385 - Suture of infrapatellar tendon, primary, or secondary (e.g., following rupture).

2. 27386 - Suture of quadriceps or hamstring muscle rupture; primary.

3. 27393 - Repair, extensor mechanism disruption, knee; without prosthesis.

4. 27394 - Repair, extensor mechanism disruption, knee; with prosthesis.

These CPT codes are typically used for surgical procedures related to the repair of tendon ruptures in the thigh area. It is important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the clinical scenario. Always ensure that the documentation supports the selected CPT code for accurate billing and reimbursement.

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