Wiki restylane

We use CPT 11950 thru 11954: Subcutaneous injection of filling materia (eg, collagen), choose your code based on how many "cc" you use; you can then utilize HCPC J7343 - Dermal and epidermal, (substitute) tissue of non-human origin for the Restylane.

Hopes this helps

If it is for cosmetic reasons, per an ASPS coding conference I went to in Nov 08. They said that you should never attach an ICd-9 code to something that is cosmetic. Make up a dummy code for tracking purposes.