M70: Soft tissue disorders related to use, overuse and pressure
M70.0: Chronic crepitant synovitis of hand and wrist
Tendons are made up of very firm connective tissue. Tendons attach muscles to bones. A tendon sheath is a covering for the tendon. It cushions the tendon and contains a small amount of fluid. This reduces friction between the tendon and its surroundings.
Over-use or repetitive movements can cause long-term inflammations of tendons and tendon sheaths. As a result the tendons and tendon sheaths may swell up and the surfaces can become rough. You can then feel or hear a rasping when the rough surfaces rub together. You may also have pain in your hand or wrist, particularly when moving them. It may also be that the pain makes it harder to move the hand.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.