Final answer:
In the HPIP system of recording, the patient's reported pain level is considered a subjective finding, as it is based on the patient's personal experience and cannot be objectively measured.
Step-by-step explanation:
In the HPIP system of recording, C) Patient's reported pain level is considered a subjective finding. This is because symptoms like pain are felt or experienced by the patient and cannot be clinically confirmed or objectively measured. Healthcare providers may use tools like the Wong-Baker Faces pain-rating scale to help patients quantify their level of pain on a scale, but these measures are still based on the patient's subjective experience and report.