Introduction: Coronary artery disease (CAD) is one of the leading causes of mortality and morbidity in Singapore. Objectives: Therefore, the main objective of this study is to analyse the prevalence and outcomes of single coronary artery detected on coronary computed tomography angiography (CCTA). Material and methods: This descriptive study was conducted in Health Department Punjab during April 2019 till November 2019. The data was collected from 100 patients. Prior to the scan, electrocardiogram (ECG), heart rate, and blood pressure of all patients were checked. Procedure preparation included administration of 25–100 mg of atenolol orally to all patients with a baseline heart rate >70 beats/min to lower the heart rate. All scans started with toprogram, followed by a prospective ECG-gated non enhanced CT scan at 75% of RR interval. Results: In SCA group, values of SBP, DBP, PP and BMI were higher than the control group, and the difference had statistical significance (P<0.05). There was no significant difference between the two groups in age, FBG, TG, TC, HDL-C and LDL-C. Other SCA included RII-C, RII-A, and RII-S, two in each class. One patient had RI and one had LII-P. Two patients had coronary artery bypass graft. Conclusion: It is concluded that SCA is divided into different subtypes based on the course of the anomalous artery. Awareness of these types is essential as it has an implication for planning patient management.