If i coughed up mucus could i possibly have copd?

No: Coughing up mucous is a normal lung and airway function. You could have COPD for other reasons though.

No: COPD is diagnosed based on symptoms (cough, shortness of breath) and tests (xrays and lung function tests). If you have a chronic cough and are a smoker you should get evaluated by your physician.

Yes: While a chronic productive cough is suggestive of copd, especially in a smoker with shortness of breath as well, coughing up mucus could also be due to allergies or sinus infections.