ICD-10 Transition


Maryland Medicaid will accept ICD-10 codes on October 1, 2015. 


About ICD-10

ICD is the International Classification of Disease, providing code description for every possible diagnosis, symptom, or cause of death.
Developed by the World Health Organization (WHO), ICD codes are monitored in the United States by the Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS).
ICD codes encompass both diagnostic and procedural codes. Changes to both the alpha-numeric composition of codes and procedural terminology associated with codes will occur wth ICD-10 conversion.
Adopting ICD-10 will allow for better support for analysis, reporting, risk, and severity assessment.


DHMH developed an ICD-10 FAQ to address provider questions about Maryland Medicaid's ICD-10 implementation strategy and policies. View the DHMH ICD-10 FAQ.


End-to-end testing with the Department

Provider end-to-end testing started on March 23, 2015 and is in progress. Providers interested in conducting end-to-end testing with the Department must email dhmh.icd10@maryland.gov. Providers should also consult the FAQs for end-to-end testing, posted below.



Resources and more information



Please send any questions regarding the ICD-10 transition in Maryland to: dhmh.icd10@maryland.gov