2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Symptoms, Signs, And Ill-Defined Conditions 780-799 > Nonspecific Abnormal Findings 790-796 > Nonspecific Abnormal Results Of Function Studies 794.* > 2006 ICD-9-CM Diagnosis 794.2 Nonspecific abnormal results of function study of pulmonary system View the most recent version of ICD-9-CM 794.2 794.2 is a specific code that can be used to specify a diagnosis 794.2 contains 9 index entries View the ICD-9-CM Volume 1 794.* hierarchy Alternate Terminology Abnormal lung scan Reduced: ventilatory capacity vital capacity  Index entries containing 794.2: Abnormal, abnormality, abnormalities - see also Anomaly function studies pulmonary 794.2 pulmonary test results 794.2 scan lung 794.2 Diminished vital capacity 794.2 Findings, abnormal, without diagnosis (examination) (laboratory test) 796.4 function study NEC 794.9 pulmonary 794.2 scan NEC 794.9 lung 794.2 Reduced ventilatory or vital capacity 794.2 Reduction ventilatory capacity 794.2 vital capacity 794.2