The codes following a Social Security number indicate the type of benefits you are entitled to. The SSN 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.
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Code
|
Identification
|
|
A
|
Wage Earner (Retirement)
|
|
B
|
Wife
|
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B1
|
Husband
|
|
B2
|
Young Wife
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C1-C9
|
Child - Includes disabled or student child
|
|
D
|
Aged Widow
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D1
|
Widower
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|
D6
|
Surviving Divorced Wife
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E
|
Widowed Mother
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E1
|
Surviving Divorced Mother
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E4
|
Widowed Father
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E5
|
Surviving Divorced Father
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F1
|
Father
|
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F2
|
Mother
|
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F3
|
Stepfather
|
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F4
|
Stepmother
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|
F5
|
Adopting Father
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F6
|
Adopting Mother
|
|
G
|
Claimant of Lump-Sum Death Benefits
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HA
|
Wage earner (disability)
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HB
|
Wife of disabled wage earner
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HB1
|
Husband of disabled wage earner
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| HC |
Child of disabled wage earner |
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J1
|
Primary Prouty entitled to deemed HIB
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|
M
|
Uninsured – Premium Health Insurance Benefits (Part A)
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M1
|
Uninsured - Qualified for but refused HIB
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T
|
Uninsured - Entitled to HIB under deemed or renal provisions
|
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W
|
Disabled Widow
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W1
|
Disabled Widower
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W6
|
Disabled Surviving Divorced Wife
|
| 
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