Lateral epicondylitis, right elbow

This code identifies inflammation and pain in the tendons on the outer side of the right elbow, specifically where the forearm muscles attach to the lateral epicondyle. It is commonly known as "tennis elbow" and results from repetitive wrist extension and forearm supination.

Use this code when documentation clearly indicates a diagnosis of lateral epicondylitis affecting the patient's right elbow. Supporting documentation should include physical exam findings consistent with the condition, such as tenderness over the lateral epicondyle and pain with resisted wrist extension.

• Ensure laterality is explicitly documented as "right" to support this specific code.
• Do not confuse with medial epicondylitis (golfer's elbow), which affects the inner elbow.
• Look for documentation of chronicity or acuity if further specificity is available (e.g., M77.10 for unspecified laterality).