Social Security Q & A- What do the letters after a Social

What do the letters after a Social Security Number mean?

The codes following a Social Security number indicate the type of benefits you are entitled to. The Social Security number followed by one of these codes is often referred to as a claim number and they are only assigned once you apply for benefits.

For example, if your Social Security number is 123-45-6789, then once you apply for retirement benefits, your claim number is 123-45-6789A. This number will also be used as your Medicare claim number, once you are eligible for Medicare.

Code	Identification
A	Wage Earner (Retirement)
B	Wife
B1	Husband
B2	Young Wife
C1-C9	Child - Includes disabled or student child
D	Aged Widow
D1	Widower
D6	Surviving Divorced Wife
E	Widowed Mother
E1	Surviving Divorced Mother
E4	Widowed Father
E5	Surviving Divorced Father
F1	Father
F2	Mother
F3	Stepfather
F4	Stepmother
F5	Adopting Father
F6	Adopting Mother
G	Claimant of Lump-Sum Death Benefits
HA	Wage earner (disability)
HB	Wife of disabled wage earner
HB1	Husband of disabled wage earner
HC	Child of disabled wage earner
M	Uninsured Premium Health Insurance Benefits (Part A)
M1	Uninsured - Qualified for but refused HIB (Part A)
T	Uninsured - Entitled to HIB (Part A) under deemed or renal provisions
W	Disabled Widow
W1	Disabled Widower
W6	Disabled Surviving Divorced Wife

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