ICD Code M66.349

ICD code M66.349 is used to classify a medical condition where there is a spontaneous rupture of the flexor tendons in an unspecified hand. This means that the tendons responsible for bending the fingers or thumb have torn without any apparent external trauma or injury, and it is not specified whether this occurred in the left or right hand. This condition can lead to difficulty in hand movement and may require medical intervention for proper diagnosis and treatment.

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

1. Clinical Presentation
- Patient reports sudden onset of pain in the hand.
- Patient experiences a loss of function or inability to flex the affected fingers.

2. Physical Examination Findings
- Swelling or bruising observed in the hand.
- Tenderness upon palpation of the flexor tendon area.

3. Range of Motion Assessment
- Limited range of motion in the fingers or hand.
- Positive findings on the flexion test indicating inability to flex the fingers.

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

5. Patient History
- Recent history of trauma or injury to the hand.
- No prior history of tendon issues or surgeries in the affected area.

6. Differential Diagnosis
- Exclusion of other conditions such as tendonitis, fractures, or nerve injuries that could mimic similar symptoms.

7. Treatment Plan
- Surgical intervention is considered based on the severity of the rupture.
- Non-surgical management is not sufficient due to the nature of the injury.

8. Follow-Up Care
- Monitoring for signs of complications such as infection or improper healing.
- Rehabilitation plans that include physical therapy to restore function post-injury.

For the ICD code M66.349, which pertains to the spontaneous rupture of flexor tendons in an unspecified hand, the relevant CPT codes that may be applicable for treatment include:

1. CPT 24341 - Repair, tendon or muscle, upper arm or elbow, each tendon or muscle, primary or secondary (excludes rotator cuff).

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

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

4. CPT 26356 - Repair or advancement, flexor tendon, in zone 2 digital flexor tendon sheath (eg, no man's land); primary, without free graft, each tendon.

5. CPT 26357 - Repair or advancement, flexor tendon, in zone 2 digital flexor tendon sheath (eg, no man's land); secondary, without free graft, each tendon.

6. CPT 26418 - Repair, tendon, flexor, hand, primary or secondary, without free graft, each tendon.

These CPT codes are typically used for surgical procedures related to the repair of flexor tendons in the hand and forearm. The selection of the appropriate CPT code will depend on the specific details of the procedure performed, including the location and nature of the tendon repair. It is important for healthcare providers to accurately document the procedure to ensure proper coding and reimbursement.

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