CMS: New ICD-10 End-to-End Testing Results Successful

The results from the latest batch of fee-for-service healthcare provider end-to-end ICD-10 testing indicates that the Centers for Medicare and Medicaid Services (CMS) is prepared to accept claims with ICD-10 codes. During the most recent testing period, which was July 20-24, CMS demonstrated an acceptance rate of 87 percent.

Participants in the testing included Medicare Administrative Contractors, FFS providers, clearing houses, and billing agencies, including  493 returning testers from the January and April testing weeks. Additionally, approximately 1,400 national provider identifiers (NPIs) were registered to test, of which 174, or 12 percent, were repeat NPIs from previous testing weeks. This indicates that many clearinghouses that participated in previous weeks chose different providers for July.

According to CMS:

  • 29,286 test claims received
  • 25,646 test claims accepted
  • Claims had an 87 percent acceptance rate
  • 8 percent of test claims were rejected due to invalid submission of ICD-10 diagnosis or procedure code
  • 6 percent of test claims were rejected due to invalid submission of ICD-9 diagnosis or procedure code


CMS found that there were no new ICD-10-related issues identified in any Medicare FFS claims processing systems, there were no rejections due to front-end problems from CMS, and issues identified during previous testing weeks were resolved prior to July testing.

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  1. This information is very helpful to me.

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