Trigger finger, right index finger

This code signifies a stenosing tenosynovitis affecting the flexor tendon sheath of the right index finger, commonly known as trigger finger. It results in painful catching, locking, or snapping of the digit during flexion and extension due to a nodule or thickening within the tendon.

Apply this code when documentation clearly indicates a diagnosis of trigger finger specifically affecting the patient's right index finger. This diagnosis is typically made based on physical examination findings, such as palpable nodule, tenderness over the A1 pulley, and characteristic triggering.

• Ensure the laterality (right) and specific digit (index finger) are explicitly documented.
• Do not confuse with other tenosynovitis codes or codes for general finger pain without the characteristic triggering.
• Consider sequencing this code as a primary diagnosis if it is the main reason for the encounter, or secondary if it's a co-morbidity.