Final answer:
The three types of pacemaker devices with unique ICD-9-CM codes are single chamber pacemakers, dual chamber pacemakers, and biventricular pacemakers, each for different cardiac conditions.
Step-by-step explanation:
The three types of pacemaker devices that each have a unique ICD-9-CM code are:
- Single chamber pacemaker, which has one lead implanted in either the right atrium or right ventricle.
- Dual chamber pacemaker, which has two leads and can pace both the right atrium and right ventricle, allowing coordination between the two chambers.
- Biventricular pacemaker, also known as cardiac resynchronization therapy (CRT), it involves leads in the right atrium, right ventricle, and left ventricle for individuals with heart failure who need synchronization of both ventricles.
Each type of pacemaker is designed to treat different cardiac conditions and these devices are represented by specific codes in the ICD-9-CM medical classification system for billing and documentation.