Virginia Law

Billing codes and modifier systems identified in this section are valid codes for the specified workers' compensation transactions, in addition to any code sets defined by the standards in 16VAC30-16-30.

1. "CDT-4 Codes" are codes and nomenclature prescribed by the American Dental Association.

2. "CPT-4 Codes" are the procedural terminology and codes contained in the "Current Procedural Terminology, Fourth Edition," as published by the American Medical Association.

3. "Diagnosis Related Group" or "DRG" is the inpatient classification scheme used by CMS for hospital inpatient reimbursement. The DRG system classifies patients based on principal diagnosis, surgical procedure, age, presence of comorbidities and complications, and other pertinent data.

4. "Healthcare Common Procedure Coding System" or "HCPCS" is a coding system that describes products, supplies, procedures, and health professional services and that includes the American Medical Association's Physician "Current Procedural Terminology, Fourth Edition," CPT-4 codes, alphanumeric codes, and related modifiers.

5. "ICD-10-CM/PCS Codes" are diagnosis and procedure codes in the International Classification of Diseases, Tenth Edition, Clinical Modification/Procedure Coding System maintained and published by the U.S. Department of Health and Human Services.

6. "NDC" are National Drug Codes of the U.S. Food and Drug Administration.

7. "Revenue Codes" is the four-digit coding system developed and maintained by the National Uniform Billing Committee for billing inpatient and outpatient hospital services, home health services, and hospice services.

8. "National Uniform Billing Committee Codes" are a code structure and instructions established for use by the National Uniform Billing Committee, such as occurrence codes, condition codes, or prospective payment indicator codes. As of February 6, 2019, these are known as UB04 codes.