Final answer:
Signs are objective indicators observed by healthcare professionals, whereas symptoms are subjective experiences of the patient. In the ICD-10-CM, signs and symptoms can be coded when not related to a confirmed diagnosis. An example is coding for viral meningitis in a patient presenting with a severe headache, photophobia, and stiff neck.
Step-by-step explanation:
The difference between signs and symptoms is a fundamental concept in clinical practice. Symptoms are subjective sensations or feelings experienced by the patient, such as nausea or pain, which cannot be measured directly by a healthcare provider. Signs, on the other hand, are objective and measurable indicators of a disease or condition, observable by a healthcare professional, like fever or an elevated heart rate.
According to the ICD-10-CM guidelines, signs and symptoms can generally be coded when they are not routinely associated with a disease process and have not been established as a definitive diagnosis. Should a definitive diagnosis be made, the signs and symptoms that are routinely associated with that diagnosis should not be coded, as the diagnostic code itself implies these clinical findings.
A scenario illustrating this might involve a patient presenting to the emergency room with a severe headache and photophobia. The healthcare provider observes that the patient has a stiff neck, a sign that contributes to the diagnosis of meningitis. The final ICD-10-CM code would be B00.3 (Viral meningitis), which is found by using the alphabetic index and verifying in the tabular list, following the coding guidelines.