NAACCR Item #3860: International Normalized Ratio Prothrombin Time
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3,860 | 3 | NAACCR | 2018 | 18 |
NAACCR XML: Tumor.iNRProthrombinTime
Description
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.
Rationale
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.
Codes
| 0.0 | 0.0 |
| 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.