Skip to main content

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Variable: CLM_CLNCL_TRIL_NUM

Clinical Trial Number

Description

The number used to identify all items and line item services provided to a beneficiary during their participation in a clinical trial.

Comment

CMS is requesting the clinical trial number be voluntarily reported. The number is assigned by the National Library of Medicine (NLM) Clinical Trials Data Bank when a new study is registered. Effective September 1, 2008 with the implementation of CR#3.

Values

n/a

Other Info

Some additional information on this variable:

  • Short Name: CCLTRNUM
  • Long Name: CLM_CLNCL_TRIL_NUM
  • Type: CHAR
  • Length: 8
  • Source: NCH
  • Value Format:
Looking for U.S. government information and services?
Visit USA.gov