Sprain of MCP joint of left little finger, init

Sprain of metacarpophalangeal joint of left little finger, initial encounter

📋Clinical Description

This code describes a sprain, or ligamentous injury, affecting the joint at the base of the left little finger, where the metacarpal bone meets the phalanx. This injury typically involves stretching or tearing of the collateral ligaments supporting the metacarpophalangeal (MCP) joint.

🎯When to Use

Apply this code for a patient presenting with a newly diagnosed sprain of the left little finger's MCP joint, such as from a hyperextension injury or direct impact. This is appropriate for the initial evaluation and treatment of the injury.

💡Coding Tips

Ensure documentation specifies the left little finger and the MCP joint.
Confirm this is the patient's first encounter for this specific injury.
Distinguish from dislocations or fractures, which have different codes.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲S63.657Sprain of metacarpophalangeal joint of left little finger

S63.657A(current)

Crosswalks

842.12ApproxICD-9

Same Category

S63Dislocation and sprain of joints and ligaments at wrs/hnd lv S63.0Subluxation and dislocation of wrist and hand joints S63.00Unspecified subluxation and dislocation of wrist and hand S63.001Unspecified subluxation of right wrist and hand S63.001A