Health IT & Interoperability

ICD-10International Classification of Diseases, 10th Revision

The standardized diagnostic coding system used for billing, reporting and health statistics.

Reviewed June 2026 by Enterprise Health

Key facts

  • Standardized diagnosis coding system.
  • Underpins claims, workers'-comp reporting and epidemiology.
  • Connects injury encounters to the OSHA 300 Log and comp.

What it means

ICD-10 codes classify diagnoses and (in ICD-10-PCS) inpatient procedures, underpinning claims, workers'-compensation reporting and epidemiology. In occupational health, accurate ICD-10 coding connects injury encounters to the OSHA 300 Log and workers' compensation and makes surveillance trends comparable across sites.

Frequently asked

What is ICD-10 used for?

Classifying diagnoses (and, in ICD-10-PCS, inpatient procedures) for billing, reporting and health statistics. Accurate ICD-10 coding ties injury encounters to the OSHA 300 Log and workers' compensation.

Why does consistent ICD-10 coding matter?

It makes surveillance trends comparable across sites and keeps claims and recordkeeping defensible. Coding at the encounter is where that accuracy starts.

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