Chronic Obstructive Pulmonary Disease (COPD): assessment of oxygen saturation

All patients aged = 18 years with the diagnosis of COPD and a FEV1 40 % of predicted value

Patient Selection:
Documentation in the medical record of a diagnosis of COPD
OR
ICD-9-CM codes for COPD: 491, 491.1, 491.2, 491.21, 491.22, 491.9, 492, 492.8, 496
AND
CPT codes for patient visit: 99201-99205, 99212-99215, 99241-99245, 99354-99355, 99385-99387, 99395-99397, 99401-99404
AND
Documentation in the medical record of a FEV1 40 % of predicted value
AND
Patient’s age is = 18 years of age