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Medical Costs Payable (Notes)

6 Months Ended

Jun. 30, 2021

Short-Duration Insurance and Deposit Contracts

Medical Costs Payable

The following table shows the components of the change in medical costs payable for the six months ended June 30:


(in millions)	2021		2020
Medical costs payable, beginning of period	$	21,872	$	21,690
Acquisitions	46		41
Reported medical costs:
Current year	92,570		76,338
Prior years	(1,120)		(660)
Total reported medical costs	91,450		75,678
Medical payments:
Payments for current year	(69,808)		(59,482)
Payments for prior years	(18,429)		(18,727)
Total medical payments	(88,237)		(78,209)
Medical costs payable, end of period	$	25,131	$	19,200

For the six months ended June 30, 2021 and June 30, 2020, prior years medical cost reserve development was primarily driven by lower than expected health system utilization. Medical costs payable included reserves for claims incurred by insured customers but not yet reported to the Company of $16.9 billion and $14.8 billion at June 30, 2021 and December 31, 2020, respectively.