utely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was aIf you've been following our medical billing series on oxygen billing and the electronic transmission of claims using NSF 3.01 specifications, you probably have been thinking, at least to this point, that this GX0 record isn't too bad. Well, that's all about to change as we start getting into the more complex fields of this record with this installment. We pick up our review of the GX0 record with field number 20, which is going to take a little bit of explaining in order to make it perfectly clear.

GX0 field 20, position 146, is the inpatient/outpatient indicator. You have to wonder how the carriers come up with these descriptions because this one does absolutely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was a

nking, at least to this point, that this GX0 record isn't too bad. Well, that's all about to change as we start getting into the more complex fields of this record with this installment. We pick up our review of the GX0 record with field number 20, which is going to take a little bit of explaining in order to make it perfectly clear.

GX0 field 20, position 146, is the inpatient/outpatient indicator. You have to wonder how the carriers come up with these descriptions because this one does absolutely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was a

this installment. We pick up our review of the GX0 record with field number 20, which is going to take a little bit of explaining in order to make it perfectly clear.

GX0 field 20, position 146, is the inpatient/outpatient indicator. You have to wonder how the carriers come up with these descriptions because this one does absolutely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was a

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GX0 field 20, position 146, is the inpatient/outpatient indicator. You have to wonder how the carriers come up with these descriptions because this one does absolutely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was a

utely nothing to clarify exactly what this field is for. This indicator is a simple Y or N answer, for yes or no. But it's not to tell the carrier if the patient was an inpatient or an outpatient at the facility. This indicator is used to tell the carrier if the tests reported in fields 22 or 23 were performed exactly within one day of discharge from the inpatient facility or if the tests were performed while the patient was at home while in a chronic stable state. If you don't understand what that means, that's okay. You are not alone. For clarification of the second part of this explanation, consult with your carrier. If you can answer yes to either of those conditions, then a Y is transmitted to the carrier. If you can't answer yes to either of those conditions then an N is transmitted to the carrier.

GX0 field 21, p