ICD Code M61.146

ICD code M61146 is used to identify a medical condition known as myositis ossificans progressiva affecting unspecified finger(s). This condition involves the abnormal formation of bone tissue within the muscle, leading to stiffness and potential restriction of movement in the affected fingers. The term "progressiva" indicates that this condition can worsen over time, potentially impacting the functionality of the fingers involved. The designation "unspecified finger(s)" means that the specific fingers affected are not detailed in the medical documentation associated with this code.

When to use the ICD code for Myositis Ossificans Progressiva, Unspecified Finger(s):

1. Diagnosis Confirmation: The patient has been clinically diagnosed with myositis ossificans progressiva by a qualified healthcare provider.

2. Symptoms Present:

- Progressive pain and swelling in the affected finger(s).

- Limited range of motion in the finger(s).

- Presence of hard lumps or masses in the soft tissue of the finger(s).

- History of trauma or injury to the finger(s) prior to symptom onset.

3. Imaging Findings: Radiological evidence (e.g., X-rays, MRI) showing abnormal calcification or ossification in the soft tissues of the finger(s).

4. Exclusion of Other Conditions: Other potential causes of similar symptoms (e.g., infections, tumors, or other types of myositis) have been ruled out through appropriate diagnostic testing.

5. Family History: A documented family history of myositis ossificans progressiva or related connective tissue disorders, which may support the diagnosis.

6. Progressive Nature: The condition is characterized by a progressive course, with symptoms worsening over time, indicating the chronic nature of the disease.

7. Age of Onset: Symptoms typically manifest in early childhood or adolescence, aligning with the known age range for the onset of myositis ossificans progressiva.

8. Clinical Evaluation: Comprehensive clinical evaluation confirming the presence of characteristic symptoms and signs consistent with the diagnosis.

Using the ICD code is appropriate when these diagnostic criteria and symptoms are met, ensuring accurate documentation and billing for the condition.

For the ICD code M61.146, which pertains to myositis ossificans progressiva of unspecified finger(s), the relevant CPT codes that may be applicable for treatment could include:

1. 20550 - Injection(s); single tendon sheath, or ligament, aponeurosis (e.g., plantar "fascia").

2. 20600 - Arthrocentesis, aspiration and/or injection into a small joint or bursa (e.g., fingers, toes); without ultrasound guidance.

3. 20605 - Arthrocentesis, aspiration and/or injection into an intermediate joint or bursa (e.g., wrist, elbow, ankle, temporomandibular, acromioclavicular); without ultrasound guidance.

4. 29280 - Application of finger splint; static.

5. 73140 - Radiologic examination, finger(s), minimum of two views.

These CPT codes are examples of procedures that might be considered in the management or treatment of conditions associated with the ICD code M61.146. It's important for healthcare providers to select the most appropriate CPT code based on the specific treatment or procedure performed. Always ensure that the chosen CPT code accurately reflects the service provided and is supported by the clinical documentation.

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