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International Classification of Diseases, 10th Revision (ICD-10)

About ICD-10 

ICD-10 Compliance Date: October 1, 2015

The Department of Health Care Services released the International Classification of Diseases, 10th Revision (ICD-10) list of included procedural and diagnosis crosswalk documents for Specialty Mental Health Services (SMHS). All identified ICD-code sets were created to assist stakeholders with system upgrades and business processes for the implementation of Short-Doyle/Medi-Cal (SD/MC) II claims with the date of service (DOS) beginning on October 1, 2015. In regards to the 837I, the control date in SD/MC II system is the Statement Thru Date. Any service with a Statement Thru Date before October 1, 2015, will require an ICD-9 diagnosis. Any service with a Statement Thru Date on or after October 1, 2015, will require an ICD-10 diagnosis.


Additional information is provided via Information Notice 15-003 and 15-030.

ICD-10 Crosswalk Documents

Surveys and Assessments

 ICD-10 Readiness Assessment Survey

Contact Us

For questions or comments, please email

MHPs, you may contact us by phone or by fax:

Phone: 916-650-6525

Fax: 916-440-5498 

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Last modified on: 3/22/2019 11:27 PM