S92.042K Displaced other fracture of tuberosity of left calcaneus, subsequent encounter for fracture with nonunion

Name of the Condition

• Displaced other fracture of tuberosity of left calcaneus, subsequent encounter for fracture with nonunion

Summary

This condition involves a displaced fracture of the tuberosity of the left calcaneus (heel bone) during a subsequent encounter, where the fracture has failed to heal (nonunion). The tuberosity is a bony prominence where the Achilles tendon attaches, and displacement indicates the bone fragments are not aligned. Nonunion means the fracture site has not progressed to union after an expected healing period, requiring further evaluation and management.

Causes

High-impact trauma to the heel, such as falls or direct blows, can cause the initial fracture. Factors contributing to nonunion may include inadequate immobilization, poor blood supply to the fracture site, infection, or excessive movement during healing. The subsequent encounter indicates ongoing care for the unhealed fracture.

Risk Factors

• Delayed or inadequate initial treatment of the fracture
• Poor blood supply to the calcaneus
• Infection at the fracture site
• Smoking or other factors that impair healing
• High-impact activities during the healing period

Symptoms

• Persistent heel pain, especially with weight-bearing
• Swelling and tenderness around the heel
• Difficulty walking or standing
• Possible deformity if the fracture remains displaced
• No improvement in symptoms over time despite prior treatment

Diagnosis

Physical examination assesses pain, swelling, and range of motion. Imaging, typically X-rays, confirms the fracture and evaluates displacement. CT scans or MRI may be used to assess bone healing and identify nonunion. Documentation must specify the fracture as displaced, the subsequent encounter, and the presence of nonunion.

Treatment Options

• Surgical intervention to realign and stabilize the fracture (e.g., internal fixation)
• Bone grafting to promote healing
• Extended immobilization or casting
• Physical therapy to restore function and strength
• Pain management and monitoring for complications

Prognosis and Follow-Up

Prognosis depends on the success of treatment and the ability to achieve union. Follow-up imaging and clinical assessments are necessary to monitor healing. Long-term outcomes may include persistent pain or functional limitations if nonunion persists. Regular follow-up with an orthopedic specialist is recommended.

Complications

• Chronic pain or instability
• Arthritis in the subtalar joint
• Nerve or vascular damage
• Infection (if surgical intervention is required)
• Difficulty returning to pre-injury activity levels

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Use appropriate footwear with good support
• Maintain a healthy weight to reduce stress on the heel
• Follow post-treatment instructions carefully to promote healing
• Address underlying conditions (e.g., osteoporosis) that may affect bone health

When to Seek Professional Help

Seek care if symptoms worsen, new swelling or deformity develops, or pain persists despite treatment. Immediate evaluation is needed for signs of infection (e.g., fever, increased redness) or if mobility is severely limited.

Tips for Medical Coders

Document the fracture as displaced, specify the subsequent encounter, and confirm nonunion. Include details on imaging findings, treatment provided, and clinical assessment of healing. Ensure documentation supports the need for ongoing care related to the unhealed fracture.