S93.321A Subluxation of tarsometatarsal joint of right foot, initial encounter

ICD10CM code

#### Name of the Condition
- Subluxation of the tarsometatarsal joint of the right foot, commonly referred to as Lisfranc joint subluxation.

#### Summary
- This condition involves a partial dislocation or misalignment of the tarsometatarsal joint located in the arch of the foot. It often results in pain and difficulty walking.

#### Causes
- Subluxation of the tarsometatarsal joint can be caused by trauma to the foot, such as twisting injuries, falls, or sports activities. Repetitive stress and congenital joint weakness can also contribute.

#### Risk Factors
- Increased risk is associated with high-impact sports, improper footwear, foot deformities, and previous foot injuries.

#### Symptoms
- Symptoms may include pain and swelling in the midfoot, bruising, the inability to bear weight, and a visible deformity or "bump" on the foot.

#### Diagnosis
- Diagnosis involves a physical examination, patient history, and imaging studies such as X-rays, CT scans, or MRIs to assess joint alignment and rule out fractures.

#### Treatment Options
- Initial treatment focuses on immobilization of the foot with a cast or boot, rest, ice, compression, and elevation (R.I.C.E). Severe cases may require surgical intervention to realign and stabilize the joint.

#### Prognosis and Follow-Up
- With appropriate treatment, patients can expect improvement, though recovery may take several months. Follow-up care is essential to monitor healing and prevent recurrence.

#### Complications
- Possible complications include chronic pain, arthritis, joint instability, and long-term disability if not treated effectively.

#### Lifestyle & Prevention
- Protective footwear and avoiding high-risk activities can help prevent subluxations. Strengthening foot muscles through exercises may also improve joint stability.

#### When to Seek Professional Help
- Seek immediate medical attention if there is severe pain, swelling, inability to walk, or if the foot appears deformed after an injury.

#### Additional Resources
- American Orthopaedic Foot & Ankle Society (AOFAS)
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

#### Tips for Medical Coders
- Pay attention to laterality and whether it is an initial or subsequent encounter.
- Ensure precision in documenting the specific location (tarsometatarsal joint) and condition (subluxation) to avoid common coding errors.

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