The Failure Mode

A critical access hospital is a small rural facility that Medicare certifies under its own set of conditions, separate from the ones a general hospital meets. Two of those conditions are numbers, and in the statute they sit inside one clause: 25 beds and 96 hours. The bed figure is a count of objects and behaves like a count of objects. The hour figure does not behave like a clock. Ask what the 96 hours limits and three answers come back, each correct inside its own document. To the condition of participation it is an average across a year of stays. To the contractor that pays the claims it is a quantity derived from a cost report. To the physician writing the admission order it is a forecast recorded before the stay happens. These are not three phrasings of one rule but three tests that share a number. The reading that travels furthest is the one none of the documents supports: that a patient admitted to a critical access hospital has to be out within 96 hours. Where the three rea...

A Medicare beneficiary arrives at an emergency department at 6 p.m. on a Monday and is discharged at 2 p.m. on Wednesday. The wall clock records 44 hours. Four separate federal texts read that same interval and return four different numbers: two midnights, one midnight, one day, and 12 hours. Every one of the four is correctly computed. The divergence is not rounding and it is not a data quality problem. Three of the four rules count calendar boundaries rather than duration, and they do not start counting at the same instant. The fourth counts hours, but only the hours spent in one billing status. The stay is one physical fact; the record of it is four, and they do not reconcile. What follows traces the 44 hours through each text in the order a hospital applies them. Inpatient Status Begins With a Signature The arithmetic depends first on the fact that inpatient status is not a property of a bed or of how sick someone is. It is created by a document. eCFR, 42 CFR 412.3 Admissions...

Someone dials 911. Some number of minutes later a unit stops at a curb. Between those two moments sits a figure that gets read into council minutes, printed in state reports, and compared across counties: the response time. That figure does not cover the whole gap between the dial and the curb, and the documents that define it say so in plain type. The national EMS data standard gives every moment in a call its own numbered timestamp. A published sheet of interval definitions states which two of those timestamps the response figure subtracts. The public research dataset then performs that subtraction across tens of millions of records and, in the same appendix, states the value above which the result is discarded. None of it is concealed; the manuals are open. What follows is that chain in order, with the governing text at each step and, at each step, a note on what the next link no longer carries. One call, ten recorded moments The published response figure uses two of them....

A Waiting Room Is a Downstream Symptom A person sitting in an emergency room for six hours is looking at the part of the building where the delay shows, which need not be the part where it is produced. When a visit is going to end in admission, there is a second candidate for the constraint: an empty bed of a particular kind, in a particular unit, two or three floors up, in a place that patient will never see. The federal government has a name for the resulting condition. In GAO-09-347, Hospital Emergency Departments: Crowding Continues to Occur, and Some Patients Wait Longer than Recommended Time Frames (2009), the Government Accountability Office defined boarding as the situation in which “A patient remains in the emergency department after the decision to admit or transfer the patient has been made, for example because an inpatient bed elsewhere in the hospital is not yet available.” That sentence contains the whole failure mode. A patient for whom the decision to ...