Trigger finger, right ring finger

This diagnosis code signifies stenosing tenosynovitis affecting the flexor tendon of the right ring finger, commonly known as trigger finger. It is characterized by a painful catching or locking of the digit during flexion and extension, often due to a nodule on the tendon or a narrowing of the tendon sheath.

Apply this code when documentation clearly indicates a diagnosis of trigger finger specifically affecting the patient's right ring finger. This typically occurs when a physician notes the characteristic symptoms and confirms the location during a physical examination. Supporting documentation would include notes detailing the affected digit and the clinical presentation of triggering.

• Ensure the documentation specifies the right hand and the ring finger; laterality and digit specificity are crucial for accurate coding.
• Do not confuse with other tenosynovitis codes or unspecified trigger finger codes (M65.30).
• If multiple fingers are affected, code each affected digit separately, ensuring correct laterality and digit specificity for each.