Center for Medicaid and Medicare Services (CMS.gov) ICD-10 Code look-up:  Enter a description or key word to look up an ICD 10 code.   |

http://www.cms.gov/medicare-coverage-database/staticpages/icd-10-code-lookup.aspx

CMS:  Road to 10:  Collection of webcasts, clinician case stories, specialty references, etc. |http://www.roadto10.org/

CMS Interactive Case Studies

http://www.roadto10.org/ics/

Clinical Social Work Associationhas a recorded webinar of ICD-10 Implementation | www.clinicalsocialworkassociation.org
AMA Recommendations for Transitioning to ICD 10

http://www.ama-assn.org/ama/pub/physician-resources/solutions-managing-your-practice/coding-billing-insurance/hipaahealth-insurance-portability-accountability-act/transaction-code-set-standards/icd10-code-set.page

ICD10Data.com: Warning:  Non-government site.  User friendly site that takes the official ICD-10-CM and ICD-10-PCS medical codes and adds millions of cross references betweencodes.  |  www.icd10data.com
Below  are links to the crosswalk site for DSM-ICD. It's all you need to make the transition.
http://dhcfp.nv.gov/uploadedFiles/dhcfpnvgov/content/Public/AdminSupport/DSM%204CW5.pdf
The whole ICD-10 CM is available free of cost at the CMS website: 

https://www.cms.gov/medicare/coding/icd10/2015-icd-10-cm-and-gems.html

http://www.naswma.org/?page=ICD10

GUIDE TO USING DSM-5 IN THE TRANSITION TO ICD-10 AMERICAN PSYCHIATRIC ASSOCIATION

If I have a DSM-5, do I need to purchase an ICD-10 to identify correct billing codes? No. If you are a behavioral health provider, DSM-5 should remain your primary resource. It is a tool that provides you with diagnostic criteria and corresponding ICD-10 codes (in parentheses). 

Do I need a DSM-5 to practice, or can I just use the ICD-10 book? Providers should continue to use DSM-5 to determine the correct diagnosis of a mental disorder. ICD-10 does not contain information to help guide diagnosis; it is simply a listing of disease names and their corresponding codes. There is a diagnostic book, The ICD-10 Classification of Mental and Behavioural Disorders (referred to as the “Blue Book”), which contains diagnostic criteria and non-U.S. ICD-10 codes. However, this book was last updated in 1992 and is not in line with contemporary thinking about mental illness in the same way as the DSM-5.
The ICD-10 Classification of Mental and Behavioural Disorders (the “Blue Book”), was last updated in 1992 and is not in line with contemporary thinking about mental illness in the same way as the DSM-5.

Information below is for future updates:

Does the U.S. Officially recognize DSM-5 for use in identifying ICD-10 codes? Yes. The National Center for Health Statistics and the Centers for Medicare & Medicaid Services (CMS) oversee the official implementation of ICD-10 in the U.S. CMS has posted the following on its website: “ DSM-5 contains the standard criteria and definitions of mental disorders now approved by the American Psychiatric Association (APA), and it also contains both ICD-9-CM and ICD-10-CM codes (in parentheses) selected by APA. Since DSM-IV only contains ICD-9-CM codes, it will cease to be recognized for criteria or coding for services with dates of service of October 1, 2015 or later. Updates for DSM-5 criteria and their associated ICD-10-CM codes (identified by APA) will be found at www.dsm5.org.” See more at the following CMS web page: http://1.usa.gov/1vqmdZP

A free webinar with in-depth information about the transition is available at the American Psychiatric Association’s website: www.psychiatry.org/ICD10transition There also are several resources available via the DSM-5 website at www.dsm5.org. You are encouraged to visit this site often as updates in coding and other resources are often added.