Trigger finger, right little finger

This code describes stenosing tenosynovitis affecting the flexor tendon of the right little finger, causing the digit to catch or lock during flexion and extension. It results from inflammation and thickening of the tendon sheath, impeding smooth gliding of the tendon. Patients typically experience pain, tenderness, and a palpable nodule at the base of the affected finger.

Use this code when documentation explicitly states a diagnosis of trigger finger specifically affecting the right little finger. This diagnosis is often made clinically based on physical examination findings, such as a palpable nodule, tenderness, and characteristic catching or locking of the digit. Ensure the laterality (right) and specific digit (little finger) are clearly documented.

• Always verify laterality (right vs. left) and the specific digit involved.
• Do not confuse with other finger conditions like Dupuytren's contracture (M72.0) or other tenosynovitis not specified as trigger finger.
• If the trigger finger affects multiple digits, assign a separate code for each affected finger, ensuring correct laterality and digit specificity.