The
NACC maintains liaison with WHO on United States and Canadian government use,
implementation and maintenance of the Family of International
Classifications. The NACC coordinates activities in three major aspects of
classification: mortality, morbidity, and disability and works with
the other WHO collaborating centers and related offices to promote
and coordinate ICD and ICF applications. In the United States, NCHS
has responsibility for ICD use in mortality statistics in collaboration
with the States. Development and use of the clinical modification of
ICD and related classifications for morbidity applications are a shared
responsibility with the Centers for Medicare and Medicaid Services (CMS),
with NCHS having the lead for diagnoses and CMS having the lead for
procedures. NCHS also has responsibility for national disability
statistics in the United States. In Canada, Statistics Canada has
responsibility for ICD use in mortality statistics in collaboration with
the Provinces and Territories. CIHI has responsibility for
development and use of the clinical modification of ICD and procedure
classification for morbidity applications. National disability
statistics are the responsibility of Statistics Canada and CIHI.