The National Institute for Health and Clinical Excellence (NICE) has issued full guidance to the NHS in England, Wales, Scotland and Northern Ireland on collagen injection for vocal cord augmentation.


Collagen is injected either transorally or transcutaneously from below the vocal fold using a laryngeal needle. The exact placement of collagen varies depending on the patient's pathology. The procedure can be carried out with local anaesthesia, and may not require admission.

Coding recommendations

E33.6 Vocal cord medialisation using biological material

Includes: Thyroplasty using biological material