Liver

Note 1: The Model for End-Stage Liver Disease (MELD) is a numerical scale used to determine how urgently a patient with liver disease needs a liver transplant within the next three months. Results from three routine lab tests are used to calculate the MELD score. International normalized ratio for prothrombin time (INR), one of the tests, measures the liver's ability to make blood clotting factors.
Note 2: The normal range for a healthy person is 0.9-1.3. A high INR level such as INR=5 indicates that there is a high chance of bleeding. A low level such as INR = 0.5 indicates a high chance of abnormal clotting. Normal values may vary from lab to lab. Record the highest INR value prior to treatment.
Note 3: Record INR of 0.5 as 005; record INR of 5 as 050.
Note 4: If the test was done but the actual value is not stated, code 997.

Code	Description
000	OBSOLETE DATA CONVERTED V0203 See code 998 Test not done
001	0.1 or less
002-099	0.2 - 9.9 (Exact ratio to nearest tenth)
100	INR 10.0 or greater
988	Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 988 may result in an edit error.)
997	Test ordered, results not in chart
998	CONVERTED AND CODE REUSED V0203 Prior to V0203 code defined as "Test ordered, results not in chart". Cases converted to code 997 with V0203 and code 998 redefined as "Test not done (test not ordered and not performed)". Test not done (test not ordered and not performed)
999	Unknown or no information Not documented in patient record

CS Site-Specific Factor 8International Normalized Ratio for Prothrombin Time (INR)