1.0.4

Version 1.0.4 updates the map of supported VSAC code systems based on the following documentation:

• https://cts.nlm.nih.gov/fhir/
• https://www.nlm.nih.gov/vsac/support/authorguidelines/code-systems.html

Note that this also removes the older diagnosis-specific and procedure-specific ICD9 URLs in favor of the single accepted ICD9 URL. The more specific variants are not recommended or supported by FHIR any longer.