US Department of Defense - - Responsibilities: Assign specific codes to medical records, sequencing and determining codes to accurately reflect the resources and procedures used in the care of the patients.; Understand diagnosis and treatment procedures in order to interpret, analyze and select correct codes.; Ensure compliance with regulatory and third-party insurance requirements in utilizing the ICD-10-CM, PCS, CPT, and HCPCS LEVEL II coding books.; Code complicated medical records having diagnostic, surgical and therapeutic procedures.; Use specialized procedures and methods to correct and amend records.