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The International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM), is based on the official version of the World Health Organization's Ninth Revision.

ICD-9 codes are to be used on Medicare professional (Part B and DME) claims for dates of service before October 1, 2015. When submitting a data span, the "from" date (not the "to" date) determines whether an ICD-9 or ICD-10 diagnosis code should be on the claim. For claims with "from" dates before October 1, 2015, submit an ICD-9 diagnosis code.

For further guidance on billing Part B and DME claims with a date span, see CMS Medicare Learning Network (MLN) Matters Special Edition (SE) 1408 - Medicare Fee-For-Service (FFS) Claims Processing Guidance for Implementing International Classification of Diseases, 10th Edition (ICD-10) – A Re-Issue of MM7492 This link will take you to an external website..


Certificates of Medical Necessity (CMNs) and DME Information Forms (DIFs)

Last Updated Nov 03, 2016