00618
Contraindications to Observations
1995-12-15
Definition: list diagnosis or problem for which the test is a contraindication or of possible danger (e.g., pacemaker, pregnancy, diabetes). For example, if the test identified in OM1 was an intravenous pyelogram, this field would include warnings about the use of contrast media in diabetes. The contraindication diagnoses should be separated by repeat delimiters.
Most contraindication rules will be transmitted as free text. In such cases, the contents serves only as information for human reading. However, an alternative for machine readable contraindication rules also exists. The rule may be defined formally in the Arden syntax (ASTM 1460-1992) which has syntax for defining algebraic and transcendental equations, as well as temporal and logical selection criteria based on patient information stored in the computer record. Reflex rules that are written in Arden Syntax should begin and end with a double semi-colon (;;), the Arden slot delimiter.
Length≤65536
6 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 |