===== NCCD =====
The Normalized Chinese Clinical Drug (NCCD) knowledge base is the coding system extending the information model of RxNorm for Chinese Clinical Drugs.

==== Sources ====
All NCCD codes are obtained from the following:
  * China Food and Drug Administration
  * China Health Insurance Systems
  * Hospital Pharmacy Systems
  * China Pharmacopoeia

[[https://www.ohdsi.org/wp-content/uploads/2020/07/NCCD_RxNorm_Mapping_0728.pdf|Read more]].