Basic Overview About ICD-10 (reference:

The ICD-9 code sets used to report medical diagnoses and inpatient procedures will be replaced by ICD-10 code sets on October 1, 2015. ICD-10 consists of two parts:

  • ICD-10-CM diagnosis coding which is for use in all U.S. health care settings.
  • ICD-10-PCS inpatient procedure coding which is for use in U.S. hospital settings.

ICD-10 will affect diagnosis and inpatient procedure coding for everyone covered by the Health Insurance Portability Accountability Act (HIPAA), not just those who submit Medicare or Medicaid claims:

  • Claims for services provided on or after the compliance date should be submitted with ICD-10 diagnosis codes.
  • Claims for services provided prior to the compliance date should be submitted with ICD-9 diagnosis codes.

The change to ICD-10 does not affect CPT coding for outpatient procedures.

We will be adding to this list of ICD-10 resources frequently:


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