Percentage of surgical pathology reports for invasive oropharyngeal squamous cell carcinoma (OPSCC) with HR-HPV testing by surrogate marker p16 performed AND that include quantitative p16 immunohistochemistry (IHC) results. INSTRUCTIONS: This measure has two performance rates that contribute to the overall performance score: 1. Percentage of surgical pathology reports for invasive OPSCC with HR-HPV testing by surrogate marker p16 IHC performed. 2. Percentage of surgical pathology reports for invasive OPSCC with HR-HPV testing by surrogate marker p16 IHC performed AND that include quantitative p16 IHC results based on the >=70% nuclear and cytoplasmic staining. This measure is to be reported each time an invasive OPSCC pathology report is finalized during the performance period. This measure may be submitted by eligible clinicians who perform the quality actions described in the measure based on the services provided and the measure-specific denominator coding. The overall performance score submitted is a simple average of: (Performance rate 1 + Performance rate 2)/2.