The AAN is dedicated to help you navigate the transition to ICD-10-CM, providing resources for your questions about the new codes.

The American Medical Association and Centers for Medicare and Medicaid Services (CMS) announced a “grace period” for Medicare claims after the October 1, 2015, implementation of ICD-10-CM. Access frequently asked questions about how the Medicare grace period affects you. 

CMS has established a communication center with an ICD-10 ombudsman dedicated to triaging claims processing issues. Inquiries can be submitted to

Neurologic Diagnosis Crosswalks
  • Access crosswalks of commonly reported Neurologic ICD-9-CM diagnosis codes translated to ICD-10-CM codes including:
    • Sleep apnea
    • Alzheimer's Disease
    • Essential tremor
    • Multiple sclerosis
    • Migraine
    • Peripheral neuropathy
    • Muscular dystrophy
    • Benign paroxysmal positional vertigo
    • Syncope
    • Headache
  • View AAN developed Epilepsy crosswalks of ICD-9 codes translated to ICD-10 codes
AAN Educational Resources

AAN Online Tools:

AAN Conferences:

Contact AAN Member Services for your free flash drive loaded with valuable ICD-10-CM content

External Tools

Use these helpful tools and resources for additional help while adjusting to ICD-10-CM:

Payer Resources

Payer Specific Tools: Find guides and updates specific to each payer's respective implementation.

Continuum Coding Collection
Continuum Coding Collection: Free access to all Coding Issues articles including ICD-10-CM coding tables written by topical coding experts and published in Continuum: Lifelong Learning in Neurology.

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