The Social Security Claim Number is the Social Security number of the individual on whose earnings benefits are being paid, followed by a letter designating the individual’s relationship to the wage earner; that is, widow, children, etc. This number will consist of a 9 digit Social Security number and a 1 or 2 space suffix.
| Prefix | Description |
|---|---|
| A | Primary Beneficiary |
| B | Wife, age 62 or over (1st Claimant) |
| B1 | Husband, age 62 or over (1st Claimant) |
| B2 | Wife, under 65 whose entitlement or benefit amount is dependent upon having a child in her care. (1st Claimant) |
| B3 | Wife, age 62 or over (2nd Claimant) |
| B4 | Husband, age 62 or over (2nd Claimant) |
| B5 | Wife, under 65 whose entitlement or benefit amount is dependent upon having a child in her care. (2nd Claimant) |
| B6 | Divorced wife, age 62 or over (1st Claimant) |
| B7 | Wife, under 65 whose entitlement or benefit amount is dependent upon having a child in her care. (2nd Claimant) |
| B8 | Wife, age 62 or over (3rd Claimant) |
| B9 | Divorced wife, age 62 or over (2nd Claimant) |
| BA | Wife, age 62 or over (4th Claimant) |
| BD | Wife, age 62 or over (5th Claimant) |
| BG | Husband, age 62 or over (3rd Claimant) |
| BH | Husband, age 62 or over (4th Claimant) |
| BJ | Husband, age 62 or over (5th Claimant) |
| BK | Wife, under 65 whose entitlement or benefit amount is dependent upon having a child in her care (4th Claimant) |
| BL | Wife, under 65 whose entitlement or benefit amount is dependent upon having a child in her care. (5th Claimant) |
| BN | Divorced wife, age 62 or over (3rd Claimant) |
| BP | Divorced wife, aged 62 or over (4th Claimant) |
| BQ | Divorced wife, age 62 or over (5th Claimant) |
| BR | Divorced husband (1st Claimant) |
| BT | Divorced husband (2nd Claimant) |
| BW | Young husband (2nd Claimant) |
| BY | Young husband (1st Claimant) |
| C1-C9, CA-CK | Child (includes minor child, disabled child, and student child) |
| D | Widow, age 60 or over (1st Claimant) |
| D1 | Widower, age 60 or over (1st Claimant) |
| D2 | Widow, age 60 or over (2nd Claimant) |
| D3 | Widower, age 60 or over (2nd Claimant) |
| D4 | Widow, who has remarried after attaining age 60 |
| D5 | Widower, who has remarried after attaining age 60 |
| D6 | Surviving divorced wife, age 60 or over (1st Claimant) |
| D7 | Surviving divorced wife, age 60 or over (2nd Claimant) |
| D8 | Widow, age 60 or over (3rd Claimant) |
| D9 | Widow, who has remarried after attaining age 60 (2nd Claimant) |
| DA | Widow, who has remarried after attaining age 60 (3rd Claimant) |
| DC | Surviving divorced husband (1st Claimant) |
| DD | Widow, age 60 or over (4th Claimant) |
| DG | Widow, age 60 or over (5th Claimant) |
| DH | Widower, age 60 or over (3rd Claimant) |
| DJ | Widower, age 60 or over (4th Claimant) |
| DK | Widower, age 60 or over (5th Claimant) |
| DL | Widow, who has remarried after attaining age 60 (4th Claimant) |
| DM | Surviving divorced husband (2nd Claimant) |
| DN | Widow, who has remarried after attaining age 60 (5th Claimant) |
| DP | Widower, who has remarried after attaining age 60 (2nd Claimant) |
| DQ | Widower, who has remarried after attaining age 60 (3rd Claimant) |
| DR | Widower, who has remarried after attaining age 60 (4th Claimant) |
| DS | Surviving divorced husband (3rd Claimant) |
| DT | Widower, who has remarried after attaining age 60 (5th Claimant) |
| DV | Surviving divorced wife, age 60 or over (3rd Claimant) |
| DW | Surviving divorced wife, age 60 or over (4th Claimant) |
| DX | Surviving divorced husband (4th Claimant) |
| DY | Surviving divorced wife, age 60 or over (5th Claimant) |
| DZ | Surviving divorced husband (5th Claimant) |
| E | Mother (widow) (1st Claimant) |
| E1 | Surviving divorced mother (1st Claimant) |
| E2 | Mother (widow) (2nd Claimant) |
| E3 | Surviving divorced mother (2nd Claimant) |
| E4 | Father (widower) (2nd Claimant) |
| E5 | Surviving divorced father (widower) (1st Claimant) |
| E6 | Father (widower) (2nd Claimant) |
| E7 | Mother (widow) (3rd Claimant) |
| E8 | Mother (widow) (4th Claimant) |
| E9 | Surviving divorced father (widower) (2nd Claimant) |
| EA | Mother (widow) (5th Claimant) |
| EB | Surviving divorced mother (3rd Claimant) |
| EC | Surviving divorced mother (4th Claimant) |
| ED | Surviving divorced mother (5th Claimant) |
| EF | Father (widower) (3rd Claimant) |
| EG | Father (widower) (3rd Claimant) |
| EH | Father (widower) (3rd Claimant) |
| EJ | Surviving divorced father (widower) (2nd Claimant) |
| EK | Surviving divorced father (widower) (2nd Claimant) |
| EM | Surviving divorced father (widower) (2nd Claimant) |
| F1 | Father |
| F2 | Mother |
| F3 | Stepfather |
| F5 | Adopting father |
| F6 | Adopting mother |
| F7 | Second alleged father |
| F8 | Second alleged mother |
| J1 | Primary Prouty entitled to HIB (less than 3 qualifying quarters (QQs)) (General Fund) |
| J2 | Primary Prouty entitled to HIB (over 2 QQs) (Retirement and Survivors Insurance (RSI) Trust Fund) |
| J3 | Primary Prouty not entitled to HIB (less than 3 QQs) (General Fund) |
| J4 | Primary Prouty not entitled to HIB (over 2 QQs) (RSI Trust Fund) |
| K1 | PROUTY wife entitled to HIB (less than 3 quarters covered) (General Fund) (1st Claimant) |
| K2 | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (1st Claimant) |
| K3 | PROUTY wife not entitled to HIB (less than 3 quarters covered) (General Fund) (1st Claimant) |
| K4 | PROUTY wife not entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (1st Claimant) |
| K5 | PROUTY wife entitled to HIB (less than 3 quarters covered) (General Fund) (2nd Claimant) |
| K6 | PROUTY wife not entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (2nd Claimant) |
| K7 | PROUTY wife not entitled to HIB (less than 3 quarters covered) (General Fund) (2nd Claimant) |
| K8 | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (2nd Claimant) |
| K9 | PROUTY wife entitled to HIB (less than 3 quarters covered) (General Fund) (3rd Claimant) |
| KA | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (3rd Claimant) |
| KB | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (3rd Claimant) |
| KC | PROUTY wife not entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (3rd Claimant) |
| KD | PROUTY wife entitled to HIB (less than 3 quarters covered) (General Fund) (4th Claimant) |
| KE | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (4th Claimant) |
| KF | PROUTY wife not entitled to HIB (less than 3 quarters covered) (General Fund) (4th Claimant) |
| KG | PROUTY wife not entitled to HIB (less than 3 quarters covered) (General Fund) (4th Claimant) |
| KH | PROUTY wife entitled to HIB (less than 3 quarters covered) (General Fund) (5th Claimant) |
| KJ | PROUTY wife entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (5th Claimant) |
| KL | PROUTY wife not entitled to HIB (less than 3 quarters covered) (General Fund) (5th Claimant) |
| KM | PROUTY wife not entitled to HIB (over 2 quarters covered) (RSI Trust Fund) (5th Claimant) |
| M | Uninsured Beneficiary not entitled to Title II (OASDI) or Railroad monthly benefits (at time of filing) – not qualified for automatic HIB |
| M1 | Uninsured Beneficiary qualified for automatic HIB but requests SMIB only |
| O | Combined A and B beneficiary in the same payment |
| T | Primary beneficiary not entitled to Title II (OASDI) or Railroad monthly benefits (at time of filing). Also renal disease only beneficiary. |
| TA | Medicare Qualified Government Employment (MQGE) primary beneficiary |
| TB | MQGE aged spouse (1st claimant) |
| TC | MQGE childhood disability benefits (CDB) (1st claimant) |
| TD | MQGE aged widow(er) (1st claimant) |
| TE | MQGE young widow(er) (1st claimant) |
| TF | MQGE parent (male) |
| TG | MQGE aged spouse (2nd claimant) |
| TH | MQGE aged spouse (3rd claimant) |
| TJ | MQGE aged spouse (4th claimant) |
| TK | MQGE aged spouse (5th claimant) |
| TL | MQGE aged widow(er) (2nd claimant) |
| TM | MQGE aged widow(er) (3rd claimant) |
| TN | MQGE aged widow(er) (4th claimant) |
| TP | MQGE aged widow(er) (5th claimant) |
| TQ | MQGE parent (female) |
| TR | MQGE young widow(er) (2nd claimant) |
| TS | MQGE young widow(er) (3rd claimant) |
| TT | MQGE young widow(er) (4th claimant) |
| TU | MQGE young widow(er) (5th claimant) |
| TV | MQGE disabled widow(er) (1st claimant) |
| TW | MQGE disabled widow(er) (1st claimant) |
| TX | MQGE disabled widow(er) (2nd claimant) |
| TY | MQGE disabled widow(er) (3rd claimant) |
| TZ | MQGE disabled widow(er) (4th claimant) |
| T2 | MQGE (CDB) (2nd claimant) |
| T3 | MQGE (CDB) (3rd claimant) |
| T4 | MQGE (CDB) (4th claimant) |
| T5 | MQGE (CDB) (5th claimant) |
| T6 | MQGE (CDB) (6th claimant) |
| T7 | MQGE (CDB) (7th claimant) |
| T8 | MQGE (CDB) (8th claimant) |
| T9 | MQGE (CDB) (9th claimant) |
| W | Disabled widow, age 50 or older (1st claimant) |
| W1 | Disabled widower, age 50 or older (1st claimant) |
| W2 | Disabled widow, age 50 or older (2nd claimant) |
| W3 | Disabled widower, age 50 or older (2nd claimant) |
| W4 | Disabled widow, age 50 or over (3rd claimant) |
| W5 | Disabled widower, age 50 or older (3rd claimant) |
| W6 | Disabled surviving divorced wife (1st claimant) |
| W7 | Disabled surviving divorced wife (2nd claimant) |
| W8 | Disabled surviving divorced wife (3rd claimant) |
| W9 | Disabled widow, age 50 or older (4th claimant) |
| WB | Disabled widower, age 50 or older (4th claimant) |
| WC | Disabled surviving divorced wife (4th claimant) |
| WF | Disabled widow, age 50 or older (5th claimant) |
| WG | Disabled widower, age 50 or older (5th claimant) |
| WJ | Disabled surviving divorced wife (5th claimant) |
| WR | Disabled surviving divorced husband (1st claimant) |
| WT | Disabled surviving divorced husband (2nd claimant) |
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