ICD Code M66.29

ICD code M66.29 is used to classify and document the diagnosis of a spontaneous rupture of extensor tendons occurring at multiple sites. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM), which is used by healthcare providers to ensure accurate diagnosis and billing. The term "spontaneous rupture" indicates that the tendon tears or breaks without any external trauma or injury, often due to underlying conditions such as rheumatoid arthritis or other degenerative diseases. "Extensor tendons" refer to the tendons responsible for extending or straightening joints, commonly found in the hands, wrists, and feet. The specification of "multiple sites" means that this condition affects more than one location in the body, which can complicate treatment and recovery. Proper documentation using this ICD code is crucial for effective communication among healthcare providers and for the appropriate management of the patient's condition.

When to use the ICD code for spontaneous rupture of extensor tendons at multiple sites:

1. Clinical Presentation
- Patient reports sudden onset of pain in the affected area.
- Visible deformity or abnormal positioning of the fingers or toes.

2. Physical Examination Findings
- Palpable defect or gap in the tendon upon examination.
- Limited range of motion in the affected digits.

3. Functional Impairment
- Difficulty in extending fingers or toes.
- Inability to perform daily activities requiring hand or foot function.

4. Imaging Studies
- MRI or ultrasound confirms the presence of tendon rupture.
- X-rays may be performed to rule out associated fractures.

5. Mechanism of Injury
- History of trauma or overuse leading to tendon rupture.
- Activities involving repetitive motion or sudden force applied to the extremities.

6. Duration of Symptoms
- Symptoms have persisted for a specific duration, indicating a need for intervention.
- Acute presentation within a defined time frame post-injury.

7. Associated Conditions
- Presence of underlying conditions that may predispose to tendon rupture (e.g., rheumatoid arthritis, diabetes).
- History of previous tendon injuries or surgeries in the same area.

8. Response to Initial Treatment
- Lack of improvement with conservative management (e.g., rest, ice, immobilization).
- Need for surgical intervention due to severity of the rupture.

By adhering to these diagnostic criteria and symptoms, healthcare providers can accurately determine when to apply the relevant ICD code for spontaneous rupture of extensor tendons at multiple sites.

For the ICD code M66.29, which refers to the spontaneous rupture of extensor tendons at multiple sites, 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 25270 - Repair, tendon or muscle, extensor, forearm and/or wrist; primary, single, each tendon or muscle.

4. CPT 26418 - Repair, tendon, extensor, hand, primary or secondary; each tendon.

5. CPT 26480 - Transfer or transplant of tendon, carpometacarpal area or dorsum of hand; without free graft, each tendon.

6. CPT 26485 - Transfer or transplant of tendon, carpometacarpal area or dorsum of hand; with free graft (includes obtaining graft), each tendon.

These CPT codes are typically used for surgical interventions related to tendon repair or transfer, which may be necessary for addressing the condition described by ICD code M66.29. It's important for healthcare providers to select the appropriate CPT code based on the specific procedure performed and the anatomical site involved.

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