DRGL-F
Medicare Severity DRG Length of Stay Sample Layout

Tab delimited fields
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Field 1 DRG--Diagnosis related group number
MS-DRGs 998 and 999 contain cases that could not be assigned to valid DRGs.  
*Field 2 POSTACUTE--Designates if post-acute transfer policy applies.
The IPPS post-acute care transfer payment policy avoids creating an incentive for a hospital to transfer patients to another hospital early in the patient's stay in order to minimize costs while still receiving the full DRG payment. Hospitals transferring patients to a post-acute care setting will be paid 50 percent of the total IPPS payment plus the average per diem for the first day of the stay. Fifty percent of the per diem amount will be paid for each subsequent day of the stay, up to the full MS-DRG payment amount.
*Field 3 SPECPAY--Designates if special pay policy applies.
CMS developed "Special Pay" methodology for DRGs that result in a high percentage of a hospital's costs occurring early in the inpatient stay. For these cases, hospitals are paid 50% of the full DRG payment plus the single per diem rate for the first day of the stay and 50% of the per diem for the remaining days of the stay, not to exceed the full DRG payment.
Field 4 MDC--Major diagnostic code number
Field 5 TYPE--Type, surgical (SURG) or medical (MED)
Field 6 TITLE--DRG Title
Field 7 WEIGHTS--Relative weights
Field 8 GEOLOS--Geometric mean length of stay
Field 9 ARITHLOS--Arithmetic mean length of stay

Sample Data
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DRG	POSTACUTE	SPECPAY	MDC	TYPE	TITLE	WEIGHTS	GEOLOS	ARITHLOS
001	No	No	PRE	SURG	Heart transplant or implant of heart assist system w MCC	23.1117	30.8	45.6
002	No	No	PRE	SURG	Heart transplant or implant of heart assist system w/o MCC	16.2735	16.1	22.8
003	Yes	No	PRE	SURG	ECMO or trach w MV 96+ hrs or PDX exc face, mouth & neck w maj O.R.	18.7707	33.4	40.6
004	Yes	No	PRE	SURG	Trach w MV 96+ hrs or PDX exc face, mouth & neck w/o maj O.R.	11.4219	23.8	29.3
005	No	No	PRE	SURG	Liver transplant w MCC or intestinal transplant	10.6120	17.6	23.5
006	No	No	PRE	SURG	Liver transplant w/o MCC	7.2562	9.1	10.5
007	No	No	PRE	SURG	Lung transplant	8.4002	14.6	17.3
008	No	No	PRE	SURG	Simultaneous pancreas/kidney transplant	5.1726	10.1	11.8
009	No	No	PRE	SURG	Bone marrow transplant	6.4842	18.1	21.7
010	No	No	PRE	SURG	Pancreas transplant	3.8902	9.2	10.5
011	No	No	PRE	SURG	Tracheostomy for face,mouth & neck diagnoses w MCC	4.1482	12.8	16.2
012	No	No	PRE	SURG	Tracheostomy for face,mouth & neck diagnoses w CC	3.2472	8.9	10.9
013	No	No	PRE	SURG	Tracheostomy for face,mouth & neck diagnoses w/o CC/MCC	2.6760	6.1	7.2
020	No	No	01	SURG	Intracranial vascular procedures w PDX hemorrhage w MCC	7.7073	15.2	19.1
021	No	No	01	SURG	Intracranial vascular procedures w PDX hemorrhage w CC	6.7021	13.4	15.5
...