00938
Point Versus Interval
2007-10-26
Definition: This optional attribute allows master files to classify observations as measuring the patient's state at a point in time (e.g., spot urines, random urines, serum potassium), or averaged over an interval of time (e.g., concentration, total amount, or clearance over a 24-hour collection). Interval measures most often apply to urine and stool specimens (e.g., 24-hour urines, 3-day stool fats). They also apply to clinical measurements such as urine outputs, which are reported as shift totals and 24-hour totals, and event counts on physiologic monitors such as the number of PVCs on a 24-hour Holter monitor.
This field would only be valued in a transaction if the service sending this master file message classified its observation by point versus time interval. This field is not used to record the time collection interval for a particular sample. It is used to specify a characteristic of an observation which has a defined normal range and to distinguish observations of the same kind but observed over varying periods of time. A spot urine sodium would have PT stored in this field. A 24-hour urine sodium and a 24-hour Holter monitor would have 24H stored here. This attribute would only be valued if the filling service classified its observations by timing. Refer to User-defined Table 0255 - Duration categories for suggested values.
Length≤250
26 values
* | (asterisk) Life of the "unit." Used for blood products. |
1H | 1 hour |
1L | 1 months (30 days) |
1W | 1 week |
2.5H | 2 1/2 hours |
2D | 2 days |
2H | 2 hours |
2L | 2 months |
2W | 2 weeks |
3D | 3 days |
3H | 3 hours |
3L | 3 months |
3W | 3 weeks |
4D | 4 days |
4H | 4 hours |
4W | 4 weeks |
5D | 5 days |
5H | 5 hours |
6D | 6 days |
6H | 6 hours |
7H | 7 hours |
8H | 8 hours |
12H | 12 hours |
24H | 24 hours |
30M | 30 minutes |
PT | To identify measures at a point in time. This is a synonym for "spot" or "random" as applied to urine measurements. |
9 components
| 1 | O | - | Identifier | |
| 2 | O | - | Text | |
| 3 | O | Name of Coding System | ||
| 4 | O | - | Alternate Identifier | |
| 5 | O | - | Alternate Text | |
| 6 | O | Name of Alternate Coding System | ||
| 7 | C | - | Coding System Version ID | |
| 8 | O | - | Alternate Coding System Version ID | |
| 9 | O | - | Original Text |