OpenPayer

CPT Codes

Current Procedural Terminology (CPT®) codes, maintained by the American Medical Association, are the national standard for reporting medical, surgical, and diagnostic procedures and services to payers. Browse reimbursement benchmarks, coding guidance, and payer policy context for every CPT code, organized by clinical section.

DRG Codes

Medicare Severity Diagnosis-Related Groups (MS-DRGs), maintained by CMS, classify inpatient hospital stays into payment groups. Browse national and state reimbursement rates and clinical context for every DRG, organized by Major Diagnostic Category (MDC).

HCPCS Codes

HCPCS Level II codes, maintained by CMS, cover the products, supplies, and services not included in CPT — durable medical equipment, drugs administered other than orally, ambulance transport, orthotics, prosthetics, and temporary payer-specific codes. Browse coverage and reimbursement context for every HCPCS code, organized by code family.

ICD-10-CM Codes

ICD-10-CM diagnosis codes, maintained by the CDC and CMS, are the U.S. standard for classifying diseases, injuries, and health conditions on claims. Browse diagnosis coding context, related procedure and DRG mappings, and clinical guidance, organized by clinical chapter.

ICD-10-PCS Codes

ICD-10-PCS procedure codes, maintained by CMS, classify inpatient hospital procedures for claims and reimbursement. Browse procedure definitions, related DRG mappings, and clinical context, organized by procedure section.