Medicare claims processing systems are ready to accept ICD-10 claims on Oct. 1, based on results from the second ICD-10 end-to-end testing week, the Centers for Medicare & Medicaid Services announced today. About 875 health care providers and billing companies submitted more than 23,000 test claims. “Overall, participants in the April end-to-end testing week were able to successfully submit ICD-10 test claims and have them processed through Medicare billing systems,” the agency said. “The acceptance rate for April was higher than January, with an increase in test claims submitted and a decrease in the percentage of errors related to diagnosis codes.” A final end-to-end testing week will be held July 20-24. Testers who participated in the January and April tests are automatically eligible to participate. Health care providers and others must begin including ICD-10 diagnosis and procedure codes on Medicare and other health care claims Oct. 1. For more on the transition to ICD-10, visit or

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