Medicare General Information, Eligibility and Entitlement Manual (Pub. 100-01), Ch. 3 § 10.3
Basis for Determining the Part A Coinsurance Amounts
10.3 - Basis for Determining the Part A Coinsurance Amounts
(Rev. 12980; Issued:11-25-24; Effective: 01-01-25; Implementation: 01-06-25)
The applicable inpatient deductible is the one in effect during the calendar year in which the patient's benefit
period begins (i.e., in most cases, the year in which the first inpatient hospital services are furnished in the
benefit period). Except for 1989, the coinsurance amount is based on the deductible applicable for the
calendar year in which the coinsurance days occur.
When Deductible and/or Coinsurance Are Applicable for Part A
Inpatient Hospital- First 60 Days
Deductible applicable equal to national average cost per
day
Inpatient Hospital- 61st thru 90th Day
Coinsurance per day always equal to 1/4 of inpatient
hospital deductible
Inpatient Hospital- 60 Lifetime Reserve Days
(nonrenewable) - 91st thru 150th day
Coinsurance always equal to 1/2 of inpatient hospital
deductible
Skilled Nursing Facility
21st thru 100th Day
Coinsurance always equal to 1/8 of inpatient hospital
deductible
Home Health Agency
No Deductible No Coinsurance (except for 20 percent
coinsurance for DME and prosthetics/ orthotics)
Blood
1st 3 pints (or equivalent units of packed red blood cells)
in a calendar year - combined Part A and B
Hospice *
a. Drugs and Biologicals
b. Respite Care
a. 5 percent of the cost determined by the drug copayment
schedule (may not exceed $5 per prescription)
b. 5 percent of the payment for a respite care day
*Hospices may charge coinsurance for two services only, drugs and biologicals, and respite care. The
amount of coinsurance for each prescription may not exceed $5.00. The amount for respite care may not
exceed the inpatient deductible for the year in which the hospital coinsurance period began.
Deductible and Coinsurance Amounts
Year
Part A
Deductible,
1st 60 Days
Part A
Coinsurance,
61st- 90th Days
Part A
Coinsurance,
60 Lifetime Reserve
Days
Part A
SNF Coinsurance
21st- 100th Days
1986
$492
123
246
61.50
1987
520
130
260
65.00
1988
540
135
270
67.50
1989
560
0 (1)
0 (1)
0(2)
1990
592
148
296
74.00
1991
628
157
314
78.50
1992
652
163
326
81.50
1993
676
169
338
84.50
1994
696
174
348
87.00
1995
716
179
358
89.50
1996
736
184
368
92.00
1997
760
190
380
92.00
1998
764
191
382
95.50
1999
768
192
384
96.00
2000
776
194
388
97.00
2001
792
198
396
99.00
2002
812
203
406
101.50
2003
840
210
420
105.00
2004
876
219
438
109.50
2005
912
228
456
114.00
2006
952
238
476
119.00
2007
992
248
496
124.00
2008
1,024
256
512
128.00
2009
1,068
267
534
133.50
2010
1,100
275
550
137.50
2011
1,132
283
566
141.50
2012
1,156
289
578
144.50
2013
1,184
296
592
148.00
2014
1,216
304
608
152.00
2015
1,260
315
630
157.50
2016
1,288
322
644
161.00
2017
1,316
329
658
164.50
2018
1,340
335
670
167.50
2019
1364
341
682
170.50
2020
1,408
352
704
176.00
2021
1,484
371
742
185.50
2022
1,556
389
778
194.50
2023
1,600
400
800
200.00
2024
1,632
408
816
204.00
2025
1,676
419
838
209.50
1. Coinsurance was not charged for inpatient hospital care in CY 1989 due to
Catastrophic Coverage. The deductible was applied.
2. Under Catastrophic Coverage, a coinsurance payment of $25.50 was due for
days 1-8 of SNF care. No SNF coinsurance was due after day 8 in 1989.