Medical Coding Key Terms (30+ Definitions) – ICD-10, CPT, Interoperability, AAPC, SNOMED | 2025/2026

This focused glossary contains over 30 essential and up-to-date medical coding terms and definitions, ideal for students and professionals working toward certification or needing a refresher on foundational coding language. Covering terminology from major coding systems like ICD-10-CM, ICD-10-PCS, and CPT, as well as health data standards and coding organizations, this resource is aligned with the 2025/2026 coding curriculum. Key content includes: Core systems: ICD-10-CM: Diagnostic coding for all providers ICD-10-PCS: Inpatient operative procedure coding CPT & HCPCS: Treatment and evaluation coding in outpatient care CDT: Coding for dental procedures Interoperability & data standards: LOINC: Universal identifiers for lab and clinical data SNOMED-CT: Reference terminology covering diseases, findings, and outcomes Interoperability: Ability of health systems to access and exchange data in coordinated care Key organizations: AAPC: Leading credentialing body for coders, auditors, and compliance officers AHIMA: Global organization supporting health information professionals This resource is ideal for: Medical billing and coding students (CPC, CCS, CBCS prep) HIT and HIM learners building coding vocabulary Healthcare professionals needing cross-platform coding literacy Educators designing flashcards or quizzes on coding terms Keywords: ICD-10-CM, ICD-10-PCS, CPT, HCPCS, AAPC, AHIMA, SNOMED-CT, LOINC, interoperability, medical coding terms, coding systems, CDT, evaluation and management coding, coding glossary, EHR terminology