Nev. Rev. Stat. § 108.222

1. Except as otherwise provided in subsection 2, a lien claimant has a lien upon the property, any improvements for which the work, materials and equipment were furnished or to be furnished, and any construction disbursement account established pursuant to NRS 108.2403 , for: (a) If the parties agreed, by contract or otherwise, upon a specific price or method for determining a specific price for some or all of the work, material and equipment furnished or to be furnished by or through the lien claimant, the unpaid balance of the price agreed upon for such work, material or equipment, as the case may be, whether performed, furnished or to be performed or furnished at the instance of the owner or the owner’s agent; and (b) If the parties did not agree, by contract or otherwise, upon a specific price or method for determining a specific price for some or all of the work, material and equipment furnished or to be furnished by or through the lien claimant, including, without limitation, any additional or changed work, material or equipment, an amount equal to the fair market value of such work, material or equipment, as the case may be, including a reasonable allowance for overhead and a profit, whether performed, furnished or to be performed or furnished at the instance of the owner or at the instance of the owner’s agent.

2. If a contractor or professional is required to be licensed pursuant to the provisions of NRS to perform the work, the contractor or professional will only have a lien pursuant to subsection 1 if the contractor or professional is licensed to perform the work.