Ref	Id	Element Name	Req	Type	Min/Max	Usage
CR503	1348	Oxygen Equipment Type Code Description: Code indicating the specific type of equipment being prescribed for the delivery of oxygen Either CR503 or CR518 is required. All valid standard codes are used.	O	ID	1/1	Situational
CR504	1348	Oxygen Equipment Type Code Description: Code indicating the specific type of equipment being prescribed for the delivery of oxygen Required if CR503 is present and more than one type of equipment is required to administer the oxygen therapy. All valid standard codes are used.	O	ID	1/1	Situational
CR505	352	Description Description: A free-form description to clarify the related data elements and their content Industry: Equipment Reason Description Use if needed to provide additional information that could impact the medical decision.	O	AN	1/80	Situational
CR506	380	Quantity Description: Numeric value of quantity Industry: Oxygen Flow Rate	O	R	1/15	Required
CR507	380	Quantity Description: Numeric value of quantity Industry: Daily Oxygen Use Count Required if relevant to the type of home oxygen therapy requested.	O	R	1/15	Situational
CR508	380	Quantity Description: Numeric value of quantity Industry: Oxygen Use Period Hour Count Required if relevant to the type of home oxygen therapy requested.	O	R	1/15	Situational
CR509	352	Description Description: A free-form description to clarify the related data elements and their content Industry: Respiratory Therapist Order Text Use at discretion of requester.	O	AN	1/80	Situational
CR510	380	Quantity Description: Numeric value of quantity Industry: Arterial Blood Gas Quantity Either CR510 or CR511 is required.	O	R	1/15	Situational
CR511	380	Quantity Description: Numeric value of quantity Industry: Oxygen Saturation Quantity Either CR510 or CR511 is required.	O	R	1/15	Situational
CR512	1349	Oxygen Test Condition Code Description: Code indicating the conditions under which a patient was tested All valid standard codes are used.	O	ID	1/1	Required
CR513	1350	Oxygen Test Findings Code Description: Code indicating the findings of oxygen tests performed on a patient Required if patient�s arterial PO2 is greater than 55 mmHg and less than 60 mmHg, or oxygen saturation is greater than 88%. Use CR513, CR514, or CR515 as appropriate. All valid standard codes are used.	O	ID	1/1	Situational
CR514	1350	Oxygen Test Findings Code Description: Code indicating the findings of oxygen tests performed on a patient Required if patient�s arterial PO2 is greater than 55 mmHg and less than 60 mmHg, or oxygen saturation is greater than 88%. Use CR513, CR514, or CR515 as appropriate. All valid standard codes are used.	O	ID	1/1	Situational
CR515	1350	Oxygen Test Findings Code Description: Code indicating the findings of oxygen tests performed on a patient Required if patient�s arterial PO2 is greater than 55 mmHg and less than 60 mmHg, or oxygen saturation is greater than 88%. Use CR513, CR514, or CR515 as appropriate. All valid standard codes are used.	O	ID	1/1	Situational
CR516	380	Quantity Description: Numeric value of quantity Industry: Portable Oxygen System Flow Rate Required if either CR503, CR505 or CR518 = �D� (Liquid Portable) or �E� (Gaseous Portable).	O	R	1/15	Situational
CR517	1382	Oxygen Delivery System Code Description: Code to indicate if a particular form of delivery was prescribed All valid standard codes are used.	O	ID	1/1	Required
CR518	1348	Oxygen Equipment Type Code Description: Code indicating the specific type of equipment being prescribed for the delivery of oxygen Either CR503 or CR518 is required. All valid standard codes are used.	O	ID	1/1	Situational

1.	CR502 is the number of months covered by this certification.
2.	CR505 is the reason for equipment.
3.	CR506 is the oxygen flow rate in liters per minute.
4.	CR507 is the number of times per day the patient must use oxygen.
5.	CR508 is the number of hours per period of oxygen use.
6.	CR509 is the special orders for the respiratory therapist.
7.	CR510 is the arterial blood gas.
8.	CR511 is the oxygen saturation.
9.	CR516 is the oxygen flow rate for a portable oxygen system in liters per minute.