The calendar year 2021 Physician Fee Schedule final rule includes

The calendar year 2021 Physician Fee Schedule final rule includes information for Medicare-enrolled Opioid Treatment Programs (OTPs):

New covered services include FDA-approved opioid antagonist medications, specifically naloxone, for emergency treatment of opioid overdose, as well as overdose education provided in conjunction with opioid antagonist medication
New codes for nasal and injectable naloxone

Source: https://www.cms.gov/outreach-and-educationoutreachffsprovpartprogprovider-partnership-email-archive/2021-01-14-mlnc