Which description best defines a diagnosis that has been established by a provider?

• A. The patient’s self-reported symptoms alone define it
• B. A preliminary diagnosis documented without professional confirmation
• C. A tentative diagnosis documented without professional confirmation
• D. A formal determination by a qualified health care professional

Answer: (D)

A diagnosis is an official determination that comes after professional evaluation. It means a qualified health care professional has reviewed the patient’s history, performed an exam, and possibly ordered tests, then used criteria to reach a conclusion that is documented in the medical record. Self-reported symptoms describe what the patient is experiencing but don’t by themselves establish a diagnosis. A preliminary or tentative diagnosis without professional confirmation is not considered established because it’s only a working assumption. The formal determination by a qualified health care professional is the final, documented conclusion that guides treatment and communication with other providers.