Yes, obstructive lung disease and COPD are the same things.Obstructive lung diseases or COPD make it difficult to exhale all the air present in your lungs. This causes shortness of breath with exertion.
COPD, or chronic obstructive pulmonary disease, is the proper medical term that is used to refer to obstructive lung diseasessuch as chronic bronchitis and emphysema. Doctors tend to use these interchangeably.