Assigns appropriate diagnosis and procedure codes, and codes all inpatient and/or outpatient episodes of care recorded in the patient record, including review for APC/MS-DRG options, according to ICD-9-CM /ICD-10 conventions and guidelines, determining secondary diagnoses which meet reporting criteria, and referring to coding references to ensure accuracy of medical records, facilitate record transfer for billing and/or optimize reimbursement for patient care rendered. May assist other coders by training and advising on coding and abstracting according to ICD-9-CM conventions and guidelines, responding to coding inquiries, reviewing and noting coded charts, providing feedback and monitoring chart corrections to ensure that noted changes have been made to facilitate coding consistency, accuracy, efficiency and appropriate billing and reimbursement.