What type of coding uses the ICD system?

The ICD, or International Classification of Diseases, system is primarily utilized for diagnosis coding. This coding system is designed to classify and code all diagnoses, symptoms, and procedures recorded in conjunction with healthcare services. It is essential for documenting patient health conditions and conducting statistical analysis of health outcomes.

Diagnosis coding focuses on identifying the disease or condition affecting the patient and is crucial for accurate record-keeping, reimbursement processes, and health management. The use of ICD codes allows for standardized communication about patients' diagnoses among healthcare providers, insurers, and public health organizations.

While procedure coding, billing coding, and outpatient coding serve other specific functions in the healthcare system, they do not utilize the ICD system in the same capacity as diagnosis coding does. Procedure coding typically relies on CPT codes or HCPCS codes that categorize the medical procedures performed. Billing coding encompasses the processes related to billing for services rendered, while outpatient coding can include various coding systems, including but not limited to ICD for diagnosis and CPT for procedures. Thus, diagnosis coding is the correct focus when it comes to the use of the ICD system.