Achilles Tendon Injury

An Achilles tendon injury refers to damage to the Achilles tendon, which connects the calf muscles to the heel bone. This injury can manifest as tendinitis, tendinosis, or a complete rupture. Key clinical points include: 1) Commonly seen in athletes, particularly runners and those engaging in sports with sudden stops and starts. 2) Symptoms often include pain, swelling, and stiffness in the heel or back of the leg. 3) Risk factors include age, improper footwear, and sudden increases in physical activity. The etiology often involves overuse or acute trauma, leading to inflammation or degeneration of the tendon. Pathophysiologically, repetitive stress can cause micro-tears, resulting in pain and functional impairment. Clinically, patients may present with localized tenderness, swelling, and a decreased range of motion, particularly during plantar flexion. Typical use cases for this diagnosis code include emergency visits for acute pain or swelling in the Achilles region, often following physical activity.