ICD Code M66.339

ICD code M66.339 is used to classify a medical condition where there is a spontaneous rupture of the flexor tendons in an unspecified forearm. This means that the tendons responsible for bending the fingers or wrist have torn without any apparent external trauma or injury, and it is not specified whether this occurred in the left or right forearm. This condition can lead to significant functional impairment, affecting the patient's ability to perform tasks that require gripping or flexing the hand. Proper diagnosis and treatment are essential to restore function and prevent further complications.

When to use the ICD code for spontaneous rupture of flexor tendons, unspecified forearm:

1. Clinical Presentation
- Patient reports sudden onset of pain in the forearm.
- Visible swelling or deformity in the forearm region.

2. Mechanism of Injury
- History of a sudden, forceful movement or trauma to the forearm.
- No prior history of tendon injury or chronic conditions affecting tendon integrity.

3. Physical Examination Findings
- Tenderness upon palpation of the flexor tendon area.
- Limited range of motion in the affected forearm.

4. Diagnostic Imaging
- MRI or ultrasound confirms the presence of a tendon rupture without any associated fractures.
- Imaging shows no signs of chronic degeneration or previous injuries.

5. Exclusion of Other Conditions
- Rule out other causes of forearm pain, such as fractures, ligament injuries, or nerve entrapments.
- No evidence of systemic conditions that could predispose to tendon rupture (e.g., rheumatoid arthritis, diabetes).

6. Patient History
- Absence of previous tendon surgeries or interventions in the forearm.
- No history of corticosteroid use or other medications that may weaken tendons.

7. Symptom Duration
- Symptoms are acute and have developed within a short time frame (typically within hours to days).

8. Functional Impairment
- Patient experiences difficulty with gripping or performing activities requiring flexion of the fingers or wrist.

By adhering to these diagnostic criteria and symptoms, healthcare providers can accurately determine when to apply the appropriate ICD code for spontaneous rupture of flexor tendons in the unspecified forearm.

For the ICD code M66.339, which pertains to the spontaneous rupture of flexor tendons in an unspecified forearm, the relevant CPT codes that could be considered for treatment include:

1. CPT 24341 - Repair of ruptured musculotendinous cuff (e.g., rotator cuff) open; acute.

2. CPT 24342 - Repair of ruptured musculotendinous cuff (e.g., rotator cuff) open; chronic.

3. CPT 25260 - Repair of tendon or muscle, flexor, forearm and/or wrist; primary, single, each tendon or muscle.

4. CPT 25265 - Repair of tendon or muscle, flexor, forearm and/or wrist; secondary, single, each tendon or muscle.

5. CPT 25270 - Repair of tendon or muscle, flexor, forearm and/or wrist; primary, multiple, each tendon or muscle.

6. CPT 25275 - Repair of tendon or muscle, flexor, forearm and/or wrist; secondary, multiple, each tendon or muscle.

These CPT codes are typically used for surgical procedures related to the repair of tendons in the forearm, which may be applicable depending on the specific clinical scenario and treatment plan for the condition associated with ICD code M66.339. It is important for healthcare providers to select the appropriate CPT code based on the specific details of the procedure performed.

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