NAACCR Item #3860: International Normalized Ratio Prothrombin Time
|Item #||Length||Source of Standard||Year Implemented||Version Implemented||Year Retired||Version Retired|
NAACCR XML: Tumor.iNRProthrombinTime
International Normalized Ratio for Prothrombin Time (INR), an indicator of the liver’s ability to make clotting factors, is required to calculate the Model for End-Stage Liver Disease (MELD) score, which is used to assign priority for liver transplant.
International Normalized Ratio for Prothrombin Time (INR) is a Registry Data Collection Variable in AJCC. This data item was previously collected for Liver, CS SSF# 8.
|0.1||0.1 or less|
|0.2-9.9||0.2 - 9.9
(Exact ratio to nearest tenth)
|X.1||10 or greater|
|X.7||Test ordered, results not in chart|
|X.8||Not applicable: Information not collected for this case
(If this information is required by your standard setter, use of code X.8 may result in an edit error.)
|X.9||Not documented in medical record
INR (International Normalized Ratio for Prothrombin Time) not assessed or unknown if assessed
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.